# Swimming at the 2016 Summer Olympics – Qualification

For the swimming competitions at the 2016 Summer Olympics, the following qualification systems were in place. Qualification ended on 3 July 2016.

## Qualifying standards

A National Olympic Committee (NOC) may enter a maximum of 2 qualified athletes in each individual event, only if both athletes have attained the Olympic Qualifying Time (OQT). One athlete per event can potentially enter if they meet the Olympic Selection Time (OST) or if the quota of 900 athletes has not been targeted. NOCs may also permit swimmers regardless of time (1 per gender) under a Universality place, as long as they have no swimmers reaching either the standard entry time.
In the relay events, a maximum of 16 qualifying teams in each relay event must be permitted to accumulate a total of 96 relay teams; each NOC may enter only one team. The first twelve teams in each relay event at the 2015 World Championships will automatically compete for the relay events at the Olympics; while the remaining four per relay event must obtain their fastest entry times based on the FINA World Rankings of 31 May 2016 during the process.
Following the end of the qualification period, FINA will assess the number of athletes having achieved the OQT, the number of relay-only swimmers, and the number of Universality places, before inviting athletes with OST to fulfill the total quota of 900. Additionally, OST places will be distributed by event according to the position of the FINA World Rankings during the qualifying deadline (3 July 2016).
The qualifying time standards must be obtained in World Championships, Continental Championships, Continental Qualification Events, National Championships and Trials, or International Competitions approved by FINA in the period between 1 March 2015 to 3 July 2016.
FINA qualifying standards are as follows:
| Men's events | Men's events | Men's events | Women's events | Women's events | Women's events |
| Event | OQT | OST | Event | OQT | OST |
| 50 m freestyle | 22.27 | 23.05 | 50 m freestyle | 25.28 | 26.17 |
| 100 m freestyle | 48.99 | 50.70 | 100 m freestyle | 54.43 | 56.34 |
| 200 m freestyle | 1:47.97 | 1:51.75 | 200 m freestyle | 1:58.96 | 2:03.13 |
| 400 m freestyle | 3:50.44 | 3:58.51 | 400 m freestyle | 4:09.08 | 4:17.80 |
| − | − | − | 800 m freestyle | 8:33.97 | 8:51.96 |
| 1500 m freestyle | 15:14.77 | 15:46.79 | − | − | − |
| 100 m backstroke | 54.36 | 56.26 | 100 m backstroke | 1:00.25 | 1:02.36 |
| 200 m backstroke | 1:58.22 | 2:02.36 | 200 m backstroke | 2:10.60 | 2:15.17 |
| 100 m breaststroke | 1:00.57 | 1:02.69 | 100 m breaststroke | 1:07.85 | 1:10.22 |
| 200 m breaststroke | 2:11.66 | 2:16.27 | 200 m breaststroke | 2:26.94 | 2:32.08 |
| 100 m butterfly | 52.36 | 54.19 | 100 m butterfly | 58.74 | 1:00.80 |
| 200 m butterfly | 1:56.97 | 2:01.06 | 200 m butterfly | 2:09.33 | 2:13.86 |
| 200 m individual medley | 2:00.28 | 2:04.39 | 200 m individual medley | 2:14.26 | 2:18.96 |
| 400 m individual medley | 4:16.71 | 4:25.69 | 400 m individual medley | 4:43.46 | 4:53.38 |

## Individual events

Those who have achieved the Olympic Qualifying Time (OQT) or the Olympic Selection Time (OST), or have been guaranteed a Universality place are listed below for each of the following individual events:

### Men's individual events
#### Men's 50 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 22.27 | 2 | Australia | Matthew Abood Cameron McEvoy |
| Olympic Qualifying Time – 22.27 | 2 | Belgium | François Heersbrandt Jasper Aerents |
| Olympic Qualifying Time – 22.27 | 2 | Brazil | Bruno Fratus Ítalo Duarte |
| Olympic Qualifying Time – 22.27 | 2 | Canada | Santo Condorelli Yuri Kisil |
| Olympic Qualifying Time – 22.27 | 2 | China | Ning Zetao Yu Hexin |
| Olympic Qualifying Time – 22.27 | 2 | France | Frédérick Bousquet Florent Manaudou |
| Olympic Qualifying Time – 22.27 | 2 | Greece | Kristian Golomeev Odysseas Meladinis |
| Olympic Qualifying Time – 22.27 | 2 | Italy | Federico Bocchia Luca Dotto |
| Olympic Qualifying Time – 22.27 | 2 | Japan | Katsumi Nakamura Shinri Shioura |
| Olympic Qualifying Time – 22.27 | 2 | Poland | Paweł Juraszek Filip Wypych |
| Olympic Qualifying Time – 22.27 | 2 | South Africa | Douglas Erasmus Brad Tandy |
| Olympic Qualifying Time – 22.27 | 2 | United States | Nathan Adrian Anthony Ervin |
| Olympic Qualifying Time – 22.27 | 1 | Algeria | Oussama Sahnoune |
| Olympic Qualifying Time – 22.27 | 1 | Argentina | Federico Grabich |
| Olympic Qualifying Time – 22.27 | 1 | Egypt | Ali Khalafalla |
| Olympic Qualifying Time – 22.27 | 1 | Finland | Ari-Pekka Liukkonen |
| Olympic Qualifying Time – 22.27 | 1 | Germany | Damian Wierling |
| Olympic Qualifying Time – 22.27 | 1 | Great Britain | Benjamin Proud |
| Olympic Qualifying Time – 22.27 | 1 | Hungary | Krisztián Takács |
| Olympic Qualifying Time – 22.27 | 1 | Israel | Ziv Kalontarov |
| Olympic Qualifying Time – 22.27 | 1 | Lithuania | Simonas Bilis |
| Olympic Qualifying Time – 22.27 | 1 | Puerto Rico | Erik Risolvato |
| Olympic Qualifying Time – 22.27 | 1 | Romania | Norbert Trandafir |
| Olympic Qualifying Time – 22.27 | 1 | Russia | Aleksei Brianskii |
| Olympic Qualifying Time – 22.27 | 1 | Trinidad and Tobago | George Bovell |
| Olympic Qualifying Time – 22.27 | 1 | Ukraine | Andriy Hovorov |
| Olympic Selection Time – 23.05 | 1 | Albania | Sidni Hoxha |
| Olympic Selection Time – 23.05 | 1 | Croatia | Mario Todorović |
| Olympic Selection Time – 23.05 | 1 | Hong Kong | Geoffrey Cheah |
| Olympic Selection Time – 23.05 | 1 | Ireland | Shane Ryan |
| Olympic Selection Time – 23.05 | 1 | Suriname | Renzo Tjon A Joe |
| Olympic Selection Time – 23.05 | 1 | Venezuela | Cristian Quintero |
| Universality Places | 1 | Armenia | Vahan Mkhitaryan |
| Universality Places | 1 | Bangladesh | Mahfizur Rahman Sagor |
| Universality Places | 1 | Bahrain | Farhan Saleh |
| Universality Places | 1 | Benin | Jules Bessan |
| Universality Places | 1 | Bolivia | José Alberto Quintanilla |
| Universality Places | 1 | Burkina Faso | Tindwende Sawadogo |
| Universality Places | 1 | Burundi | Billy-Scott Irakose |
| Universality Places | 1 | Central African Republic | Christian Nassif |
| Universality Places | 1 | Comoros | Athoumane Solihi |
| Universality Places | 1 | Republic of the Congo | Dienov Andres Koka |
| Universality Places | 1 | Djibouti | Bourhan Abro |
| Universality Places | 1 | Fiji | Meli Malani |
| Universality Places | 1 | Gabon | Maël Ambonguilat |
| Universality Places | 1 | The Gambia | Pap Jonga |
| Universality Places | 1 | Ghana | Abeiku Jackson |
| Universality Places | 1 | Guinea | Amadou Camara |
| Universality Places | 1 | Haiti | Frantz Dorsainvil |
| Universality Places | 1 | Kosovo | Lum Zhaveli |
| Universality Places | 1 | Laos | Santisouk Inthavong |
| Universality Places | 1 | Lebanon | Anthony Barbar |
| Universality Places | 1 | Libya | Ahmad Attellesey |
| Universality Places | 1 | Malawi | Brave Lifa |
| Universality Places | 1 | Maldives | Ibrahim Nishwan |
| Universality Places | 1 | Marshall Islands | Giordan Harris |
| Universality Places | 1 | Federated States of Micronesia | Dionisio Augustine |
| Universality Places | 1 | Mongolia | Batsaikhany Dulguun |
| Universality Places | 1 | Montenegro | Maksim Inić |
| Universality Places | 1 | Niger | Albachir Mouctar |
| Universality Places | 1 | Nigeria | Samson Opuakpo |
| Universality Places | 1 | Palau | Shawn Dingilius-Wallace |
| Universality Places | 1 | Rwanda | Eloi Imaniraguha |
| Universality Places | 1 | Saint Lucia | Jordan Augier |
| Universality Places | 1 | Saint Vincent and the Grenadines | Nikolas Sylvester |
| Universality Places | 1 | Senegal | Abdoul Niane |
| Universality Places | 1 | Seychelles | Adam Viktora |
| Universality Places | 1 | Sierra Leone | Osman Kamara |
| Universality Places | 1 | Sudan | Abdelaziz Mohamed Ahmed |
| Universality Places | 1 | Tajikistan | Olim Qurbonov |
| Universality Places | 1 | Tanzania | Hilal Hemed Hilal |
| Universality Places | 1 | Togo | Eméric Kpegba |
| Universality Places | 1 | Uganda | Joshua Tibatemwa |
| Total | 85 | | |

#### Men's 100 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 48.99 | 2 | Australia | Kyle Chalmers Cameron McEvoy |
| Olympic Qualifying Time – 48.99 | 2 | Belgium | Glenn Surgeloose Pieter Timmers |
| Olympic Qualifying Time – 48.99 | 2 | Brazil | Marcelo Chierighini Nicolas Oliveira |
| Olympic Qualifying Time – 48.99 | 2 | Canada | Santo Condorelli Yuri Kisil |
| Olympic Qualifying Time – 48.99 | 2 | China | Ning Zetao Yu Hexin |
| Olympic Qualifying Time – 48.99 | 2 | France | Clément Mignon Jérémy Stravius |
| Olympic Qualifying Time – 48.99 | 2 | Germany | Björn Hornikel Damian Wierling |
| Olympic Qualifying Time – 48.99 | 2 | Great Britain | Benjamin Proud Duncan Scott |
| Olympic Qualifying Time – 48.99 | 2 | Hungary | Richárd Bohus Dominik Kozma |
| Olympic Qualifying Time – 48.99 | 2 | Italy | Luca Dotto Filippo Magnini |
| Olympic Qualifying Time – 48.99 | 2 | Japan | Katsumi Nakamura Shinri Shioura |
| Olympic Qualifying Time – 48.99 | 2 | Poland | Konrad Czerniak Paweł Korzeniowski |
| Olympic Qualifying Time – 48.99 | 2 | United States | Nathan Adrian Caeleb Dressel |
| Olympic Qualifying Time – 48.99 | 1 | Argentina | Federico Grabich |
| Olympic Qualifying Time – 48.99 | 1 | Belarus | Yauhen Tsurkin |
| Olympic Qualifying Time – 48.99 | 1 | Greece | Kristian Golomeev |
| Olympic Qualifying Time – 48.99 | 1 | Lithuania | Simonas Bilis |
| Olympic Qualifying Time – 48.99 | 1 | Netherlands | Sebastiaan Verschuren |
| Olympic Qualifying Time – 48.99 | 1 | Romania | Marius Radu |
| Olympic Qualifying Time – 48.99 | 1 | Russia | Andrey Grechin |
| Olympic Qualifying Time – 48.99 | 1 | Serbia | Velimir Stjepanović |
| Olympic Qualifying Time – 48.99 | 1 | Singapore | Joseph Schooling |
| Olympic Qualifying Time – 48.99 | 1 | Slovenia | Anže Tavčar |
| Olympic Qualifying Time – 48.99 | 1 | South Korea | Park Tae-hwan |
| Olympic Selection Time – 50.70 | 1 | Algeria | Oussama Sahnoune |
| Olympic Selection Time – 50.70 | 1 | Bulgaria | Aleksandar Nikolov |
| Olympic Selection Time – 50.70 | 1 | Finland | Ari-Pekka Liukkonen |
| Olympic Selection Time – 50.70 | 1 | Ireland | Shane Ryan |
| Olympic Selection Time – 50.70 | 1 | Israel | Ziv Kalontorov |
| Olympic Selection Time – 50.70 | 1 | Luxembourg | Raphaël Stacchiotti |
| Olympic Selection Time – 50.70 | 1 | Mauritius | Bradley Vincent |
| Olympic Selection Time – 50.70 | 1 | New Zealand | Matthew Stanley |
| Olympic Selection Time – 50.70 | 1 | Paraguay | Benjamin Hockin |
| Olympic Selection Time – 50.70 | 1 | Peru | Nicholas Magana |
| Olympic Selection Time – 50.70 | 1 | Sri Lanka | Matthew Abeysinghe |
| Olympic Selection Time – 50.70 | 1 | Trinidad and Tobago | Dylan Carter |
| Olympic Selection Time – 50.70 | 1 | Venezuela | Cristian Quintero |
| Universality Places | 1 | Cambodia | Pou Sovijja |
| Universality Places | 1 | Ivory Coast | Thibaut Danho |
| Universality Places | 1 | Dominican Republic | Jhonny Pérez |
| Universality Places | 1 | Ethiopia | Robel Habte |
| Universality Places | 1 | Malta | Andrew Chetcuti |
| Universality Places | 1 | Mozambique | Igor Mogne |
| Universality Places | 1 | Nepal | Shirish Gurung |
| Universality Places | 1 | Nicaragua | Miguel Mena |
| Universality Places | 1 | Refugee Olympic Team | Rami Anis |
| Universality Places | 1 | Zimbabwe | Sean Gunn |
| Total | 60 | | |

#### Men's 200 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:47.97 | 2 | Australia | Thomas Fraser-Holmes David McKeon |
| Olympic Qualifying Time – 1:47.97 | 2 | Belgium | Glenn Surgeloose Pieter Timmers |
| Olympic Qualifying Time – 1:47.97 | 2 | Brazil | Nicolas Oliveira João de Lucca |
| Olympic Qualifying Time – 1:47.97 | 2 | China | Shang Keyuan Sun Yang |
| Olympic Qualifying Time – 1:47.97 | 2 | France | Yannick Agnel Jérémy Stravius |
| Olympic Qualifying Time – 1:47.97 | 2 | Germany | Paul Biedermann Christoph Fildebrandt |
| Olympic Qualifying Time – 1:47.97 | 2 | Great Britain | James Guy Cameron Kurle |
| Olympic Qualifying Time – 1:47.97 | 2 | Hungary | Péter Bernek Dominik Kozma |
| Olympic Qualifying Time – 1:47.97 | 2 | Italy | Marco Belotti Andrea Mitchell D'Arrigo |
| Olympic Qualifying Time – 1:47.97 | 2 | Netherlands | Dion Dreesens Sebastiaan Verschuren |
| Olympic Qualifying Time – 1:47.97 | 2 | Poland | Kacper Majchrzak Jan Świtkowski |
| Olympic Qualifying Time – 1:47.97 | 2 | South Africa | Myles Brown Chad le Clos |
| Olympic Qualifying Time – 1:47.97 | 2 | United States | Conor Dwyer Townley Haas |
| Olympic Qualifying Time – 1:47.97 | 1 | Argentina | Federico Grabich |
| Olympic Qualifying Time – 1:47.97 | 1 | Austria | Felix Auböck |
| Olympic Qualifying Time – 1:47.97 | 1 | Egypt | Marwan El-Kamash |
| Olympic Qualifying Time – 1:47.97 | 1 | Finland | Matias Koski |
| Olympic Qualifying Time – 1:47.97 | 1 | Japan | Kosuke Hagino |
| Olympic Qualifying Time – 1:47.97 | 1 | Malaysia | Welson Sim |
| Olympic Qualifying Time – 1:47.97 | 1 | New Zealand | Matthew Stanley |
| Olympic Qualifying Time – 1:47.97 | 1 | Russia | Alexander Krasnykh |
| Olympic Qualifying Time – 1:47.97 | 1 | Serbia | Velimir Stjepanović |
| Olympic Qualifying Time – 1:47.97 | 1 | South Korea | Park Tae-hwan |
| Olympic Qualifying Time – 1:47.97 | 1 | Venezuela | Cristian Quintero |
| Olympic Selection Time – 1:51.75 | 1 | Aruba | Mikel Schreuders |
| Olympic Selection Time – 1:51.75 | 1 | El Salvador | Marcelo Acosta |
| Olympic Selection Time – 1:51.75 | 1 | Jordan | Khader Baqlah |
| Olympic Selection Time – 1:51.75 | 1 | Moldova | Alexei Sancov |
| Olympic Selection Time – 1:51.75 | 1 | Norway | Henrik Christiansen |
| Olympic Selection Time – 1:51.75 | 1 | Switzerland | Alexandre Haldemann |
| Olympic Selection Time – 1:51.75 | 1 | Tunisia | Ahmed Mathlouthi |
| Olympic Selection Time – 1:51.75 | 1 | Vietnam | Hoàng Quý Phước |
| Universality Places | 1 | Antigua and Barbuda | Noah Mascoll-Gomes |
| Universality Places | 1 | Iraq | Bakr Al-Dulaimi |
| Universality Places | 1 | Palestine | Ahmed Gebrel |
| Universality Places | 1 | Samoa | Brandon Schuster |
| Total | 49 | | |

#### Men's 400 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 3:50.44 | 2 | Australia | Mack Horton David McKeon |
| Olympic Qualifying Time – 3:50.44 | 2 | Austria | Felix Auböck David Brandl |
| Olympic Qualifying Time – 3:50.44 | 2 | China | Sun Yang Qiu Ziao |
| Olympic Qualifying Time – 3:50.44 | 2 | Denmark | Mads Glæsner Anton Ipsen |
| Olympic Qualifying Time – 3:50.44 | 2 | Egypt | Ahmed Akram Marwan El-Kamash |
| Olympic Qualifying Time – 3:50.44 | 2 | Germany | Clemens Rapp Florian Vogel |
| Olympic Qualifying Time – 3:50.44 | 2 | Great Britain | James Guy Stephen Milne |
| Olympic Qualifying Time – 3:50.44 | 2 | Hungary | Péter Bernek Gergő Kis |
| Olympic Qualifying Time – 3:50.44 | 2 | New Zealand | Matthew Hutchins Matthew Stanley |
| Olympic Qualifying Time – 3:50.44 | 2 | Poland | Wojciech Wojdak Filip Zaborowski |
| Olympic Qualifying Time – 3:50.44 | 2 | Russia | Vyacheslav Andrushenko Alexander Krasnykh |
| Olympic Qualifying Time – 3:50.44 | 2 | United States | Conor Dwyer Connor Jaeger |
| Olympic Qualifying Time – 3:50.44 | 1 | Brazil | Luiz Altamir Melo |
| Olympic Qualifying Time – 3:50.44 | 1 | Canada | Ryan Cochrane |
| Olympic Qualifying Time – 3:50.44 | 1 | Czech Republic | Jan Micka |
| Olympic Qualifying Time – 3:50.44 | 1 | Finland | Matias Koski |
| Olympic Qualifying Time – 3:50.44 | 1 | France | Jordan Pothain |
| Olympic Qualifying Time – 3:50.44 | 1 | Italy | Gabriele Detti |
| Olympic Qualifying Time – 3:50.44 | 1 | Japan | Naito Ehara |
| Olympic Qualifying Time – 3:50.44 | 1 | Malaysia | Welson Sim |
| Olympic Qualifying Time – 3:50.44 | 1 | Netherlands | Maarten Brzoskowski |
| Olympic Qualifying Time – 3:50.44 | 1 | Norway | Henrik Christiansen |
| Olympic Qualifying Time – 3:50.44 | 1 | Serbia | Velimir Stjepanović |
| Olympic Qualifying Time – 3:50.44 | 1 | South Africa | Myles Brown |
| Olympic Qualifying Time – 3:50.44 | 1 | South Korea | Park Tae-hwan |
| Olympic Qualifying Time – 3:50.44 | 1 | Spain | Miguel Durán |
| Olympic Qualifying Time – 3:50.44 | 1 | Tunisia | Ahmed Mathlouthi |
| Olympic Qualifying Time – 3:50.44 | 1 | Turkey | Nezir Karap |
| Olympic Selection Time – 3:58.51 | 1 | Barbados | Alex Sobers |
| Olympic Selection Time – 3:58.51 | 1 | El Salvador | Marcelo Acosta |
| Olympic Selection Time – 3:58.51 | 1 | Georgia | Irakli Revishvili |
| Olympic Selection Time – 3:58.51 | 1 | Greece | Dimitrios Dimitriou |
| Olympic Selection Time – 3:58.51 | 1 | Philippines | Jessie Lacuna |
| Olympic Selection Time – 3:58.51 | 1 | Venezuela | Cristian Quintero |
| Universality Places | 1 | Andorra | Pol Arias |
| Universality Places | 1 | Cayman Islands | Geoffrey Butler |
| Universality Places | 1 | Cyprus | Iacovos Hadjiconstantinou |
| Universality Places | 1 | Pakistan | Haris Bandey |
| Total | 50 | | |

#### Men's 1500 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 15:14.77 | 2 | Australia | Mack Horton Jack McLoughlin |
| Olympic Qualifying Time – 15:14.77 | 2 | Brazil | Brandonn Almeida Miguel Valente |
| Olympic Qualifying Time – 15:14.77 | 2 | China | Qiu Ziao Sun Yang |
| Olympic Qualifying Time – 15:14.77 | 2 | Denmark | Anton Ipsen Pál Joensen |
| Olympic Qualifying Time – 15:14.77 | 2 | France | Nicolas D'Oriano Damien Joly |
| Olympic Qualifying Time – 15:14.77 | 2 | Great Britain | Stephen Milne Timothy Shuttleworth |
| Olympic Qualifying Time – 15:14.77 | 2 | Hungary | Gergely Gyurta Kristóf Rasovszky |
| Olympic Qualifying Time – 15:14.77 | 2 | Italy | Gabriele Detti Gregorio Paltrinieri |
| Olympic Qualifying Time – 15:14.77 | 2 | Poland | Mateusz Sawrymowicz Wojciech Wojdak |
| Olympic Qualifying Time – 15:14.77 | 2 | Russia | Ilya Druzhinin Yaroslav Potapov |
| Olympic Qualifying Time – 15:14.77 | 2 | Spain | Antonio Arroyo Marc Sánchez |
| Olympic Qualifying Time – 15:14.77 | 2 | Ukraine | Serhiy Frolov Mykhailo Romanchuk |
| Olympic Qualifying Time – 15:14.77 | 2 | United States | Connor Jaeger Jordan Wilimovsky |
| Olympic Qualifying Time – 15:14.77 | 1 | Argentina | Martín Carrizo Martín Naidich |
| Olympic Qualifying Time – 15:14.77 | 1 | Austria | Felix Auböck |
| Olympic Qualifying Time – 15:14.77 | 1 | Canada | Ryan Cochrane |
| Olympic Qualifying Time – 15:14.77 | 1 | Czech Republic | Jan Micka |
| Olympic Qualifying Time – 15:14.77 | 1 | Ecuador | Esteban Enderica |
| Olympic Qualifying Time – 15:14.77 | 1 | Egypt | Ahmed Akram |
| Olympic Qualifying Time – 15:14.77 | 1 | El Salvador | Marcelo Acosta |
| Olympic Qualifying Time – 15:14.77 | 1 | Germany | Florian Wellbrock |
| Olympic Qualifying Time – 15:14.77 | 1 | Mexico | Ricardo Vargas |
| Olympic Qualifying Time – 15:14.77 | 1 | Norway | Henrik Christiansen |
| Olympic Qualifying Time – 15:14.77 | 1 | Slovakia | Richárd Nagy |
| Olympic Qualifying Time – 15:14.77 | 1 | South Africa | Matthew Meyer |
| Olympic Qualifying Time – 15:14.77 | 1 | South Korea | Park Tae-hwan |
| Olympic Qualifying Time – 15:14.77 | 1 | Tunisia | Oussama Mellouli |
| Olympic Selection Time – 15:46.79 | 1 | Bosnia and Herzegovina | Mihajlo Čeprkalo |
| Olympic Selection Time – 15:46.79 | 1 | Chile | Felipe Tapia |
| Olympic Selection Time – 15:46.79 | 1 | Cook Islands | Wesley Roberts |
| Olympic Selection Time – 15:46.79 | 1 | Malaysia | Welson Sim |
| Olympic Selection Time – 15:46.79 | 1 | New Zealand | Matthew Hutchins |
| Olympic Selection Time – 15:46.79 | 1 | Slovenia | Martin Bau |
| Universality Places | 0 | — | — |
| Total | 46 | | |

#### Men's 100 m backstroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 54.36 | 2 | Australia | Josh Beaver Mitch Larkin |
| Olympic Qualifying Time – 54.36 | 2 | Belarus | Viktar Staselovich Mikita Tsmyh |
| Olympic Qualifying Time – 54.36 | 2 | China | Li Guangyuan Xu Jiayu |
| Olympic Qualifying Time – 54.36 | 2 | Japan | Junya Hasegawa Ryosuke Irie |
| Olympic Qualifying Time – 54.36 | 2 | Poland | Radosław Kawęcki Tomasz Polewka |
| Olympic Qualifying Time – 54.36 | 2 | Russia | Evgeny Rylov Grigory Tarasevich |
| Olympic Qualifying Time – 54.36 | 2 | United States | Ryan Murphy David Plummer |
| Olympic Qualifying Time – 54.36 | 1 | Brazil | Guilherme Guido |
| Olympic Qualifying Time – 54.36 | 1 | Canada | Javier Acevedo |
| Olympic Qualifying Time – 54.36 | 1 | France | Camille Lacourt |
| Olympic Qualifying Time – 54.36 | 1 | Germany | Jan-Philip Glania |
| Olympic Qualifying Time – 54.36 | 1 | Great Britain | Chris Walker-Hebborn |
| Olympic Qualifying Time – 54.36 | 1 | Greece | Apostolos Christou |
| Olympic Qualifying Time – 54.36 | 1 | Hungary | Gábor Balog |
| Olympic Qualifying Time – 54.36 | 1 | Ireland | Shane Ryan |
| Olympic Qualifying Time – 54.36 | 1 | Israel | Yakov-Yan Toumarkin |
| Olympic Qualifying Time – 54.36 | 1 | Italy | Simone Sabbioni |
| Olympic Qualifying Time – 54.36 | 1 | Lithuania | Danas Rapšys |
| Olympic Qualifying Time – 54.36 | 1 | New Zealand | Corey Main |
| Olympic Qualifying Time – 54.36 | 1 | Romania | Robert Glință |
| Olympic Qualifying Time – 54.36 | 1 | Singapore | Quah Zheng Wen |
| Olympic Qualifying Time – 54.36 | 1 | South Africa | Christopher Reid |
| Olympic Selection Time – 56.26 | 1 | Jamaica | Timothy Wynter |
| Olympic Selection Time – 56.26 | 1 | South Korea | Won Young-jun |
| Olympic Selection Time – 56.26 | 1 | Spain | Hugo González |
| Olympic Selection Time – 56.26 | 1 | Venezuela | Albert Subirats |
| Universality Places | 1 | Botswana | David van der Colff |
| Universality Places | 1 | Kenya | Hamdan Bayusuf |
| Universality Places | 1 | Morocco | Driss Lahrichi |
| Universality Places | 1 | Qatar | Noah Al-Khulaifi |
| Universality Places | 1 | Turkmenistan | Merdan Ataýew |
| Universality Places | 1 | United Arab Emirates | Yaaqoub Al-Saadi |
| Total | 39 | | |

#### Men's 200 m backstroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:58.22 | 2 | Australia | Josh Beaver Mitch Larkin |
| Olympic Qualifying Time – 1:58.22 | 2 | China | Li Guangyuan Xu Jiayu |
| Olympic Qualifying Time – 1:58.22 | 2 | Germany | Christian Diener Jan-Philip Glania |
| Olympic Qualifying Time – 1:58.22 | 2 | Hungary | Dávid Földházi Ádám Telegdy |
| Olympic Qualifying Time – 1:58.22 | 2 | Japan | Ryosuke Irie Masaki Kaneko |
| Olympic Qualifying Time – 1:58.22 | 2 | Russia | Evgeny Rylov Andrey Shabasov |
| Olympic Qualifying Time – 1:58.22 | 2 | United States | Ryan Murphy Jacob Pebley |
| Olympic Qualifying Time – 1:58.22 | 1 | Belarus | Mikita Tsmyh |
| Olympic Qualifying Time – 1:58.22 | 1 | Brazil | Leonardo de Deus |
| Olympic Qualifying Time – 1:58.22 | 1 | Greece | Apostolos Christou |
| Olympic Qualifying Time – 1:58.22 | 1 | Israel | Yakov-Yan Toumarkin |
| Olympic Qualifying Time – 1:58.22 | 1 | Lithuania | Danas Rapšys |
| Olympic Qualifying Time – 1:58.22 | 1 | New Zealand | Corey Main |
| Olympic Qualifying Time – 1:58.22 | 1 | Poland | Radosław Kawęcki |
| Olympic Qualifying Time – 1:58.22 | 1 | Spain | Hugo González |
| Olympic Selection Time – 2:02.36 | 1 | Colombia | Omar Pinzón |
| Olympic Selection Time – 2:02.36 | 1 | Romania | Robert Glință |
| Olympic Selection Time – 2:02.36 | 1 | Virgin Islands | Rexford Tullius |
| Universality Places | 1 | Azerbaijan | Boris Kirillov |
| Total | 26 | | |

#### Men's 100 m breaststroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:00.57 | 2 | Australia | Jake Packard Joshua Palmer |
| Olympic Qualifying Time – 1:00.57 | 2 | Brazil | Felipe França Silva João Gomes Júnior |
| Olympic Qualifying Time – 1:00.57 | 2 | China | Li Xiang Yan Zibei |
| Olympic Qualifying Time – 1:00.57 | 2 | Great Britain | Adam Peaty Ross Murdoch |
| Olympic Qualifying Time – 1:00.57 | 2 | Japan | Yasuhiro Koseki Ippei Watanabe |
| Olympic Qualifying Time – 1:00.57 | 2 | Lithuania | Andrius Šidlauskas Giedrius Titenis |
| Olympic Qualifying Time – 1:00.57 | 2 | Russia | Kirill Prigoda Vsevolod Zanko |
| Olympic Qualifying Time – 1:00.57 | 2 | United States | Kevin Cordes Cody Miller |
| Olympic Qualifying Time – 1:00.57 | 1 | Colombia | Jorge Murillo |
| Olympic Qualifying Time – 1:00.57 | 1 | Germany | Christian vom Lehn |
| Olympic Qualifying Time – 1:00.57 | 1 | Greece | Panagiotis Samilidis |
| Olympic Qualifying Time – 1:00.57 | 1 | Hungary | Dániel Gyurta |
| Olympic Qualifying Time – 1:00.57 | 1 | Iceland | Anton Sveinn McKee |
| Olympic Qualifying Time – 1:00.57 | 1 | Italy | Andrea Toniato |
| Olympic Qualifying Time – 1:00.57 | 1 | Kazakhstan | Dmitriy Balandin |
| Olympic Qualifying Time – 1:00.57 | 1 | New Zealand | Glenn Snyders |
| Olympic Qualifying Time – 1:00.57 | 1 | Poland | Marcin Stolarski |
| Olympic Qualifying Time – 1:00.57 | 1 | Serbia | Čaba Silađi |
| Olympic Qualifying Time – 1:00.57 | 1 | Slovakia | Tomáš Klobučník |
| Olympic Qualifying Time – 1:00.57 | 1 | Slovenia | Damir Dugonjič |
| Olympic Qualifying Time – 1:00.57 | 1 | South Africa | Cameron van der Burgh |
| Olympic Selection Time – 1:02.69 | 1 | Bahamas | Dustin Tynes |
| Olympic Selection Time – 1:02.69 | 1 | Canada | Jason Block |
| Olympic Selection Time – 1:02.69 | 1 | Finland | Matti Mattsson |
| Olympic Selection Time – 1:02.69 | 1 | Ireland | Nicholas Quinn |
| Olympic Selection Time – 1:02.69 | 1 | Luxembourg | Laurent Carnol |
| Olympic Selection Time – 1:02.69 | 1 | Panama | Édgar Crespo |
| Olympic Selection Time – 1:02.69 | 1 | Switzerland | Yannick Käser |
| Olympic Selection Time – 1:02.69 | 1 | Sweden | Erik Persson |
| Olympic Selection Time – 1:02.69 | 1 | Syria | Azad Al-Barazi |
| Olympic Selection Time – 1:02.69 | 1 | Thailand | Radomyos Matjiur |
| Olympic Selection Time – 1:02.69 | 1 | Uruguay | Martín Melconian |
| Olympic Selection Time – 1:02.69 | 1 | Uzbekistan | Vladislav Mustafin |
| Olympic Selection Time – 1:02.69 | 1 | Venezuela | Carlos Claverie |
| Universality Places | 1 | Bermuda | Julian Fletcher |
| Universality Places | 1 | Grenada | Corey Ollivierre |
| Universality Places | 1 | Guam | Benjamin Schulte |
| Universality Places | 1 | Tonga | Amini Fonua |
| Total | 46 | | |

#### Men's 200 m breaststroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:11.66 | 2 | Brazil | Tales Cerdeira Thiago Simon |
| Olympic Qualifying Time – 2:11.66 | 2 | China | Li Xiang Mao Feilian |
| Olympic Qualifying Time – 2:11.66 | 2 | Great Britain | Craig Benson Andrew Willis |
| Olympic Qualifying Time – 2:11.66 | 2 | Greece | Dimitrios Koulouris Panagiotis Samilidis |
| Olympic Qualifying Time – 2:11.66 | 2 | Hungary | Dániel Gyurta Dávid Horváth* |
| Olympic Qualifying Time – 2:11.66 | 2 | Japan | Yasuhiro Koseki Ippei Watanabe |
| Olympic Qualifying Time – 2:11.66 | 2 | Russia | Anton Chupkov Ilya Khomenko |
| Olympic Qualifying Time – 2:11.66 | 2 | South Africa | Jarred Crous Cameron van der Burgh |
| Olympic Qualifying Time – 2:11.66 | 2 | United States | Kevin Cordes Josh Prenot |
| Olympic Qualifying Time – 2:11.66 | 1 | Canada | Ashton Baumann |
| Olympic Qualifying Time – 2:11.66 | 1 | Colombia | Jorge Murillo |
| Olympic Qualifying Time – 2:11.66 | 1 | Finland | Matti Mattsson |
| Olympic Qualifying Time – 2:11.66 | 1 | Germany | Marco Koch |
| Olympic Qualifying Time – 2:11.66 | 1 | Iceland | Anton Sveinn McKee |
| Olympic Qualifying Time – 2:11.66 | 1 | Ireland | Nicholas Quinn |
| Olympic Qualifying Time – 2:11.66 | 1 | Italy | Luca Pizzini |
| Olympic Qualifying Time – 2:11.66 | 1 | Kazakhstan | Dmitriy Balandin |
| Olympic Qualifying Time – 2:11.66 | 1 | Lithuania | Giedrius Titenis |
| Olympic Qualifying Time – 2:11.66 | 1 | Luxembourg | Laurent Carnol |
| Olympic Qualifying Time – 2:11.66 | 1 | South Korea | Choi Kyu-woong |
| Olympic Qualifying Time – 2:11.66 | 1 | Sweden | Erik Persson |
| Olympic Qualifying Time – 2:11.66 | 1 | Switzerland | Yannick Käser |
| Olympic Qualifying Time – 2:11.66 | 1 | Ukraine | Dmytro Oseledets |
| Olympic Qualifying Time – 2:11.66 | 1 | Venezuela | Carlos Claverie |
| Olympic Selection Time – 2:16.27 | 1 | Belgium | Basten Caerts |
| Olympic Selection Time – 2:16.27 | 1 | Chinese Taipei | Lee Hsuan-yen |
| Olympic Selection Time – 2:16.27 | 1 | Estonia | Martin Allikvee |
| Olympic Selection Time – 2:16.27 | 1 | New Zealand | Glenn Snyders |
| Universality Places | 1 | Kyrgyzstan | Denis Petrashov |
| Universality Places | 1 | Iran | Arya Nasimi Shad |
| Total | 39 | | |

#### Men's 100 m butterfly

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 52.36 | 2 | Australia | Grant Irvine David Morgan |
| Olympic Qualifying Time – 52.36 | 2 | Belarus | Pavel Sankovich Yauhen Tsurkin |
| Olympic Qualifying Time – 52.36 | 2 | Brazil | Marcos Macedo Henrique Martins |
| Olympic Qualifying Time – 52.36 | 2 | China | Li Zhuhao Zhang Qibin |
| Olympic Qualifying Time – 52.36 | 2 | France | Mehdy Metella Jérémy Stravius |
| Olympic Qualifying Time – 52.36 | 2 | Hungary | László Cseh Bence Pulai |
| Olympic Qualifying Time – 52.36 | 2 | Italy | Piero Codia Matteo Rivolta |
| Olympic Qualifying Time – 52.36 | 2 | Poland | Konrad Czerniak Paweł Korzeniowski |
| Olympic Qualifying Time – 52.36 | 2 | Russia | Evgeny Koptelov Aleksandr Sadovnikov |
| Olympic Qualifying Time – 52.36 | 2 | Singapore | Quah Zheng Wen Joseph Schooling |
| Olympic Qualifying Time – 52.36 | 2 | United States | Michael Phelps Tom Shields |
| Olympic Qualifying Time – 52.36 | 1 | Argentina | Santiago Grassi |
| Olympic Qualifying Time – 52.36 | 1 | Germany | Steffen Deibler |
| Olympic Qualifying Time – 52.36 | 1 | Great Britain | James Guy |
| Olympic Qualifying Time – 52.36 | 1 | Guatemala | Luis Martínez |
| Olympic Qualifying Time – 52.36 | 1 | Japan | Takuro Fujii |
| Olympic Qualifying Time – 52.36 | 1 | Mexico | Long Yuan Gutiérrez |
| Olympic Qualifying Time – 52.36 | 1 | Netherlands | Joeri Verlinden |
| Olympic Qualifying Time – 52.36 | 1 | South Africa | Chad le Clos |
| Olympic Qualifying Time – 52.36 | 1 | Ukraine | Lyubomyr Lemeshko |
| Olympic Qualifying Time – 52.36 | 1 | Venezuela | Albert Subirats |
| Olympic Selection Time – 54.19 | 1 | Canada | Santo Condorelli |
| Olympic Selection Time – 54.19 | 1 | Indonesia | Glenn Victor Sutanto |
| Olympic Selection Time – 54.19 | 1 | Papua New Guinea | Ryan Pini |
| Universality Places | 1 | Guyana | Hannibal Gaskin |
| Universality Places | 1 | Honduras | Allan Gutiérrez |
| Universality Places | 1 | Kuwait | Abbas Qali |
| Universality Places | 1 | Madagascar | Anthonny Sitraka Ralefy |
| Universality Places | 1 | Mali | Oumar Touré |
| Universality Places | 1 | Myanmar | Thint Myaat |
| Universality Places | 1 | Refugee Olympic Team | Rami Anis |
| Universality Places | 1 | Zambia | Ralph Goveia |
| Total | 43 | | |

#### Men's 200 m butterfly

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:56.97 | 2 | Australia | Grant Irvine David Morgan |
| Olympic Qualifying Time – 1:56.97 | 2 | Brazil | Kaio de Almeida Leonardo de Deus |
| Olympic Qualifying Time – 1:56.97 | 2 | China | Li Zhuhao Wu Yuhang |
| Olympic Qualifying Time – 1:56.97 | 2 | Hungary | László Cseh Tamás Kenderesi |
| Olympic Qualifying Time – 1:56.97 | 2 | Japan | Masato Sakai Daiya Seto |
| Olympic Qualifying Time – 1:56.97 | 2 | Russia | Evgeny Koptelov Daniil Pakhomov |
| Olympic Qualifying Time – 1:56.97 | 2 | United States | Michael Phelps Tom Shields |
| Olympic Qualifying Time – 1:56.97 | 1 | Belgium | Louis Croenen |
| Olympic Qualifying Time – 1:56.97 | 1 | Colombia | Jonathan Gómez |
| Olympic Qualifying Time – 1:56.97 | 1 | Denmark | Viktor Bromer |
| Olympic Qualifying Time – 1:56.97 | 1 | France | Jordan Coelho |
| Olympic Qualifying Time – 1:56.97 | 1 | Greece | Stefanos Dimitriadis |
| Olympic Qualifying Time – 1:56.97 | 1 | Poland | Jan Świtkowski |
| Olympic Qualifying Time – 1:56.97 | 1 | Singapore | Quah Zheng Wen |
| Olympic Qualifying Time – 1:56.97 | 1 | South Africa | Chad le Clos |
| Olympic Qualifying Time – 1:56.97 | 1 | Spain | Carlos Peralta |
| Olympic Selection Time – 2:01.06 | 1 | India | Sajan Prakash |
| Olympic Selection Time – 2:01.06 | 1 | Israel | Gal Nevo |
| Olympic Selection Time – 2:01.06 | 1 | New Zealand | Bradlee Ashby |
| Olympic Selection Time – 2:01.06 | 1 | Slovenia | Robert Žbogar |
| Olympic Selection Time – 2:01.06 | 1 | Sweden | Simon Sjödin |
| Universality Places | 0 | — | — |
| Total | 28 | | |

#### Men's 200 m individual medley

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:00.28 | 2 | Australia | Thomas Fraser-Holmes Travis Mahoney |
| Olympic Qualifying Time – 2:00.28 | 2 | Brazil | Thiago Pereira Henrique Rodrigues |
| Olympic Qualifying Time – 2:00.28 | 2 | China | Hu Yixuan Wang Shun |
| Olympic Qualifying Time – 2:00.28 | 2 | Great Britain | Ieuan Lloyd Daniel Wallace |
| Olympic Qualifying Time – 2:00.28 | 2 | Japan | Hiromasa Fujimori Kosuke Hagino |
| Olympic Qualifying Time – 2:00.28 | 2 | Portugal | Diogo Carvalho Alexis Santos |
| Olympic Qualifying Time – 2:00.28 | 2 | United States | Ryan Lochte Michael Phelps |
| Olympic Qualifying Time – 2:00.28 | 1 | Belgium | Emmanuel Vanluchene |
| Olympic Qualifying Time – 2:00.28 | 1 | Egypt | Mohamed Hussein |
| Olympic Qualifying Time – 2:00.28 | 1 | Germany | Philip Heintz |
| Olympic Qualifying Time – 2:00.28 | 1 | Greece | Andreas Vazaios |
| Olympic Qualifying Time – 2:00.28 | 1 | Hungary | Dávid Verrasztó |
| Olympic Qualifying Time – 2:00.28 | 1 | Israel | Gal Nevo |
| Olympic Qualifying Time – 2:00.28 | 1 | Italy | Federico Turrini |
| Olympic Qualifying Time – 2:00.28 | 1 | Luxembourg | Raphaël Stacchiotti |
| Olympic Qualifying Time – 2:00.28 | 1 | New Zealand | Bradlee Ashby |
| Olympic Qualifying Time – 2:00.28 | 1 | Russia | Semen Makovich |
| Olympic Qualifying Time – 2:00.28 | 1 | Spain | Eduardo Solaeche |
| Olympic Qualifying Time – 2:00.28 | 1 | Sweden | Simon Sjödin |
| Olympic Qualifying Time – 2:00.28 | 1 | Switzerland | Jérémy Desplanches |
| Olympic Selection Time – 2:04.39 | 1 | Latvia | Uvis Kalniņš |
| Olympic Selection Time – 2:04.39 | 1 | Macedonia | Marko Blaževski |
| Olympic Selection Time – 2:04.39 | 1 | Tunisia | Ahmed Mathlouthi |
| Universality Places | 0 | — | — |
| Total | 30 | | |

#### Men's 400 m individual medley

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 4:16.71 | 2 | Australia | Thomas Fraser-Holmes Travis Mahoney |
| Olympic Qualifying Time – 4:16.71 | 2 | Germany | Jacob Heidtmann Johannes Hintze |
| Olympic Qualifying Time – 4:16.71 | 2 | Hungary | Gergely Gyurta Dávid Verrasztó |
| Olympic Qualifying Time – 4:16.71 | 2 | Italy | Luca Marin Federico Turrini |
| Olympic Qualifying Time – 4:16.71 | 2 | Japan | Kosuke Hagino Daiya Seto |
| Olympic Qualifying Time – 4:16.71 | 2 | South Africa | Michael Meyer Sebastien Rousseau |
| Olympic Qualifying Time – 4:16.71 | 2 | United States | Chase Kalisz Jay Litherland |
| Olympic Qualifying Time – 4:16.71 | 1 | Brazil | Brandonn Almeida |
| Olympic Qualifying Time – 4:16.71 | 1 | China | Wang Shun |
| Olympic Qualifying Time – 4:16.71 | 1 | Great Britain | Max Litchfield |
| Olympic Qualifying Time – 4:16.71 | 1 | Slovakia | Richárd Nagy |
| Olympic Qualifying Time – 4:16.71 | 1 | Spain | Joan Lluís Pons |
| Olympic Selection Time – 4:25.69 | 1 | Angola | Pedro Pinotes |
| Olympic Selection Time – 4:25.69 | 1 | Czech Republic | Pavel Janeček |
| Olympic Selection Time – 4:25.69 | 1 | Israel | Gal Nevo |
| Olympic Selection Time – 4:25.69 | 1 | Liechtenstein | Christoph Meier |
| Olympic Selection Time – 4:25.69 | 1 | Luxembourg | Raphaël Stacchiotti |
| Olympic Selection Time – 4:25.69 | 1 | Portugal | Alexis Santos |
| Olympic Selection Time – 4:25.69 | 1 | Switzerland | Jérémy Desplanches |
| Universality Places | 1 | Cuba | Luis Vega |
| Total | 27 | | |

### Women's individual events
#### Women's 50 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 25.28 | 2 | Australia | Bronte Campbell Cate Campbell |
| Olympic Qualifying Time – 25.28 | 2 | Belarus | Aliaksandra Herasimenia Yuliya Khitraya |
| Olympic Qualifying Time – 25.28 | 2 | Brazil | Graciele Herrmann Etiene Medeiros |
| Olympic Qualifying Time – 25.28 | 2 | Canada | Chantal van Landeghem Michelle Williams |
| Olympic Qualifying Time – 25.28 | 2 | China | Chen Xinyi Liu Xiang |
| Olympic Qualifying Time – 25.28 | 2 | Denmark | Pernille Blume Jeanette Ottesen |
| Olympic Qualifying Time – 25.28 | 2 | France | Mélanie Henique Anna Santamans |
| Olympic Qualifying Time – 25.28 | 2 | Greece | Theodora Drakou Theodora Giareni |
| Olympic Qualifying Time – 25.28 | 2 | Israel | Andrea Murez Zohar Shikler |
| Olympic Qualifying Time – 25.28 | 2 | Italy | Silvia Di Pietro Erika Ferraioli |
| Olympic Qualifying Time – 25.28 | 2 | Japan | Rikako Ikee Yayoi Matsumoto |
| Olympic Qualifying Time – 25.28 | 2 | Netherlands | Inge Dekker Ranomi Kromowidjojo |
| Olympic Qualifying Time – 25.28 | 2 | Poland | Anna Dowgiert Aleksandra Urbańczyk |
| Olympic Qualifying Time – 25.28 | 2 | Russia | Natalya Lovtsova Rozaliya Nasretdinova |
| Olympic Qualifying Time – 25.28 | 2 | Sweden | Therese Alshammar Sarah Sjöström |
| Olympic Qualifying Time – 25.28 | 2 | United States | Simone Manuel Abbey Weitzeil |
| Olympic Qualifying Time – 25.28 | 1 | Austria | Birgit Koschischek |
| Olympic Qualifying Time – 25.28 | 1 | Bahamas | Arianna Vanderpool-Wallace |
| Olympic Qualifying Time – 25.28 | 1 | Egypt | Farida Osman |
| Olympic Qualifying Time – 25.28 | 1 | Germany | Dorothea Brandt |
| Olympic Qualifying Time – 25.28 | 1 | Great Britain | Francesca Halsall |
| Olympic Qualifying Time – 25.28 | 1 | Hungary | Flóra Molnár |
| Olympic Qualifying Time – 25.28 | 1 | Mexico | Liliana Ibáñez |
| Olympic Qualifying Time – 25.28 | 1 | Norway | Susann Bjørnsen |
| Olympic Qualifying Time – 25.28 | 1 | Puerto Rico | Vanessa García |
| Olympic Qualifying Time – 25.28 | 1 | Switzerland | Sasha Touretski |
| Olympic Qualifying Time – 25.28 | 1 | Ukraine | Darya Stepanyuk |
| Olympic Selection Time – 26.17 | 1 | Aruba | Allyson Ponson |
| Olympic Selection Time – 26.17 | 1 | Bolivia | Karen Torrez |
| Olympic Selection Time – 26.17 | 1 | Botswana | Naomi Ruele |
| Olympic Selection Time – 26.17 | 1 | Chinese Taipei | Lin Pei-wun |
| Olympic Selection Time – 26.17 | 1 | Colombia | Isabella Arcila |
| Olympic Selection Time – 26.17 | 1 | Hong Kong | Camille Cheng |
| Olympic Selection Time – 26.17 | 1 | Luxembourg | Julie Meynen |
| Olympic Selection Time – 26.17 | 1 | Syria | Bayan Jumah |
| Universality Places | 1 | Antigua and Barbuda | Samantha Roberts |
| Universality Places | 1 | Armenia | Monika Vasilyan |
| Universality Places | 1 | Bahrain | Fatema Almahmeed |
| Universality Places | 1 | Bangladesh | Sonia Akter Tumpa |
| Universality Places | 1 | Benin | Laraïba Seibou |
| Universality Places | 1 | Bermuda | Rebecca Heyliger |
| Universality Places | 1 | British Virgin Islands | Elinah Phillip |
| Universality Places | 1 | Burkina Faso | Angelika Ouedraogo |
| Universality Places | 1 | Burundi | Elsie Uwamahoro |
| Universality Places | 1 | Cambodia | Hemthon Vitiny |
| Universality Places | 1 | Central African Republic | Chloe Sauvourel |
| Universality Places | 1 | Comoros | Nazlati Mohamed Andhumdine |
| Universality Places | 1 | Republic of the Congo | Bellore Sangala |
| Universality Places | 1 | Dominican Republic | Dorian McMenemy |
| Universality Places | 1 | Ethiopia | Rahel Gebresilassie |
| Universality Places | 1 | Guinea | Mariama Sow |
| Universality Places | 1 | Guyana | Jamila Sanmoogan |
| Universality Places | 1 | Haiti | Naomy Grand'Pierre |
| Universality Places | 1 | Jordan | Talita Baqlah |
| Universality Places | 1 | Kuwait | Faye Sultan |
| Universality Places | 1 | Laos | Siri Arun Budcharern |
| Universality Places | 1 | Malawi | Ammara Pinto |
| Universality Places | 1 | Mali | Fatoumata Samassékou |
| Universality Places | 1 | Malta | Nicola Muscat |
| Universality Places | 1 | Marshall Islands | Colleen Furgeson |
| Universality Places | 1 | Federated States of Micronesia | Debra Daniel |
| Universality Places | 1 | Mongolia | Yesuin Bayar |
| Universality Places | 1 | Morocco | Noura Mana |
| Universality Places | 1 | Myanmar | Ei Ei Thet |
| Universality Places | 1 | Niger | Roukaya Mahamane |
| Universality Places | 1 | Pakistan | Lianna Swan |
| Universality Places | 1 | Palau | Dirngulbai Misech |
| Universality Places | 1 | Palestine | Mary Al-Atrash |
| Universality Places | 1 | Senegal | Awa Ly N'diaye |
| Universality Places | 1 | Sierra Leone | Bunturabie Jalloh |
| Universality Places | 1 | Sudan | Haneen Ibrahim |
| Universality Places | 1 | Tajikistan | Anastasia Tyurina |
| Universality Places | 1 | Tanzania | Magdalena Moshi |
| Universality Places | 1 | Togo | Adzo Kpossi |
| Universality Places | 1 | Tonga | Irene Prescott |
| Universality Places | 1 | United Arab Emirates | Nada Al-Bedwawi |
| Total | 92 | | |

#### Women's 100 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 54.43 | 2 | Australia | Bronte Campbell Cate Campbell |
| Olympic Qualifying Time – 54.43 | 2 | Brazil | Larissa Oliveira Etiene Medeiros |
| Olympic Qualifying Time – 54.43 | 2 | Canada | Penny Oleksiak Chantal van Landeghem |
| Olympic Qualifying Time – 54.43 | 2 | China | Shen Duo Zhu Menghui |
| Olympic Qualifying Time – 54.43 | 2 | France | Charlotte Bonnet Béryl Gastaldello |
| Olympic Qualifying Time – 54.43 | 2 | Italy | Erika Ferraioli Federica Pellegrini |
| Olympic Qualifying Time – 54.43 | 2 | Japan | Rikako Ikee Miki Uchida |
| Olympic Qualifying Time – 54.43 | 2 | Netherlands | Femke Heemskerk Ranomi Kromowidjojo |
| Olympic Qualifying Time – 54.43 | 2 | Sweden | Michelle Coleman Sarah Sjöström |
| Olympic Qualifying Time – 54.43 | 2 | United States | Simone Manuel Abbey Weitzeil |
| Olympic Qualifying Time – 54.43 | 1 | Bahamas | Arianna Vanderpool-Wallace |
| Olympic Qualifying Time – 54.43 | 1 | Belarus | Aliaksandra Herasimenia |
| Olympic Qualifying Time – 54.43 | 1 | Denmark | Pernille Blume |
| Olympic Qualifying Time – 54.43 | 1 | Israel | Andrea Murez |
| Olympic Qualifying Time – 54.43 | 1 | Poland | Katarzyna Wilk |
| Olympic Qualifying Time – 54.43 | 1 | Russia | Veronika Popova |
| Olympic Selection Time – 56.34 | 1 | Bulgaria | Nina Rangelova |
| Olympic Selection Time – 56.34 | 1 | Hong Kong | Camille Cheng |
| Olympic Selection Time – 56.34 | 1 | Luxembourg | Julie Meynen |
| Olympic Selection Time – 56.34 | 1 | Norway | Susann Bjørnsen |
| Olympic Selection Time – 56.34 | 1 | Philippines | Jasmine Alkhaldi |
| Olympic Selection Time – 56.34 | 1 | Switzerland | Maria Ugolkova |
| Olympic Selection Time – 56.34 | 1 | Thailand | Natthanan Junkrajang |
| Universality Places | 1 | Albania | Nikol Merizaj |
| Universality Places | 1 | Andorra | Mónica Ramírez |
| Universality Places | 1 | Angola | Ana Sofia Nóbrega |
| Universality Places | 1 | Azerbaijan | Fatima Alkaramova |
| Universality Places | 1 | Cook Islands | Tracy Keith-Matchitt |
| Universality Places | 1 | Madagascar | Estellah Fils Rabetsara |
| Universality Places | 1 | Maldives | Aminath Shajan |
| Universality Places | 1 | Mauritius | Heather Arseth |
| Universality Places | 1 | Montenegro | Jovana Terzić |
| Universality Places | 1 | Paraguay | Karen Riveros |
| Universality Places | 1 | Romania | Ana Iulia Dascăl |
| Universality Places | 1 | Uruguay | Ines Remersaro |
| Universality Places | 1 | Zambia | Jade Howard |
| Total | 46 | | |

#### Women's 200 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:58.96 | 2 | Australia | Bronte Barratt Emma McKeon |
| Olympic Qualifying Time – 1:58.96 | 2 | Brazil | Manuella Lyrio Larissa Oliveira |
| Olympic Qualifying Time – 1:58.96 | 2 | Canada | Brittany MacLean Penny Oleksiak |
| Olympic Qualifying Time – 1:58.96 | 2 | China | Ai Yanhan Shen Duo |
| Olympic Qualifying Time – 1:58.96 | 2 | France | Coralie Balmy Charlotte Bonnet |
| Olympic Qualifying Time – 1:58.96 | 2 | Great Britain | Georgia Coates Eleanor Faulkner |
| Olympic Qualifying Time – 1:58.96 | 2 | Hong Kong | Camille Cheng Siobhán Haughey |
| Olympic Qualifying Time – 1:58.96 | 2 | Hungary | Ajna Késely Evelyn Verrasztó |
| Olympic Qualifying Time – 1:58.96 | 2 | Italy | Federica Pellegrini Alice Mizzau |
| Olympic Qualifying Time – 1:58.96 | 2 | Japan | Chihiro Igarashi Rikako Ikee |
| Olympic Qualifying Time – 1:58.96 | 2 | Netherlands | Femke Heemskerk Robin Neumann |
| Olympic Qualifying Time – 1:58.96 | 2 | Russia | Arina Openysheva Veronika Popova |
| Olympic Qualifying Time – 1:58.96 | 2 | Spain | Patricia Castro Melani Costa |
| Olympic Qualifying Time – 1:58.96 | 2 | Sweden | Sarah Sjöström Michelle Coleman |
| Olympic Qualifying Time – 1:58.96 | 2 | United States | Missy Franklin Katie Ledecky |
| Olympic Qualifying Time – 1:58.96 | 1 | Bulgaria | Nina Rangelova |
| Olympic Qualifying Time – 1:58.96 | 1 | Germany | Annika Bruhn |
| Olympic Qualifying Time – 1:58.96 | 1 | Serbia | Katarina Simonović |
| Olympic Selection Time – 2:03.13 | 1 | Bahamas | Joanna Evans |
| Olympic Selection Time – 2:03.13 | 1 | Cuba | Elisbet Gamez |
| Olympic Selection Time – 2:03.13 | 1 | Czech Republic | Barbora Seemanová |
| Olympic Selection Time – 2:03.13 | 1 | Honduras | Sara Pastrana |
| Olympic Selection Time – 2:03.13 | 1 | Israel | Andrea Murez |
| Olympic Selection Time – 2:03.13 | 1 | Macedonia | Anastasia Bogdanovski |
| Olympic Selection Time – 2:03.13 | 1 | Peru | Andrea Cedrón |
| Olympic Selection Time – 2:03.13 | 1 | Vietnam | Nguyễn Thị Ánh Viên |
| Universality Places | 1 | Fiji | Matelita Buadromo |
| Universality Places | 1 | Ghana | Kaya Forson |
| Universality Places | 1 | India | Shivani Kataria |
| Total | 44 | | |

#### Women's 400 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 4:09.08 | 2 | Australia | Jessica Ashwood Tamsin Cook |
| Olympic Qualifying Time – 4:09.08 | 2 | Canada | Brittany MacLean Emily Overholt |
| Olympic Qualifying Time – 4:09.08 | 2 | China | Cao Yue Zhang Yuhan |
| Olympic Qualifying Time – 4:09.08 | 2 | Hungary | Boglárka Kapás Ajna Késely |
| Olympic Qualifying Time – 4:09.08 | 2 | Italy | Diletta Carli Alice Mizzau |
| Olympic Qualifying Time – 4:09.08 | 2 | Spain | Mireia Belmonte Melani Costa |
| Olympic Qualifying Time – 4:09.08 | 2 | United States | Katie Ledecky Leah Smith |
| Olympic Qualifying Time – 4:09.08 | 1 | Denmark | Lotte Friis |
| Olympic Qualifying Time – 4:09.08 | 1 | France | Coralie Balmy |
| Olympic Qualifying Time – 4:09.08 | 1 | Germany | Sarah Köhler |
| Olympic Qualifying Time – 4:09.08 | 1 | Great Britain | Jazmin Carlin |
| Olympic Qualifying Time – 4:09.08 | 1 | Netherlands | Sharon van Rouwendaal |
| Olympic Qualifying Time – 4:09.08 | 1 | New Zealand | Lauren Boyle |
| Olympic Qualifying Time – 4:09.08 | 1 | Russia | Arina Openysheva |
| Olympic Qualifying Time – 4:09.08 | 1 | Slovenia | Anja Klinar |
| Olympic Qualifying Time – 4:09.08 | 1 | Venezuela | Andreina Pinto |
| Olympic Qualifying Time – 4:09.08 | 1 | Vietnam | Nguyễn Thị Ánh Viên |
| Olympic Selection Time – 4:17.80 | 1 | Bahamas | Joanna Evans |
| Olympic Selection Time – 4:17.80 | 1 | Brazil | Manuella Lyrio |
| Olympic Selection Time – 4:17.80 | 1 | Chile | Kristel Köbrich |
| Olympic Selection Time – 4:17.80 | 1 | Guatemala | Valerie Gruest |
| Olympic Selection Time – 4:17.80 | 1 | Japan | Chihiro Igarashi |
| Olympic Selection Time – 4:17.80 | 1 | Serbia | Katarina Simonović |
| Universality Places | 1 | Barbados | Lani Cabrera |
| Universality Places | 1 | El Salvador | Rebeca Quinteros |
| Universality Places | 1 | Lebanon | Gabrielle Doueihy |
| Total | 33 | | |

#### Women's 800 m freestyle

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 8:33.97 | 2 | Australia | Jessica Ashwood Tamsin Cook |
| Olympic Qualifying Time – 8:33.97 | 2 | China | Hou Yawen Zhang Yuhan |
| Olympic Qualifying Time – 8:33.97 | 2 | Germany | Leonie Beck Sarah Köhler |
| Olympic Qualifying Time – 8:33.97 | 2 | Great Britain | Jazmin Carlin Camilla Hattersley |
| Olympic Qualifying Time – 8:33.97 | 2 | Hungary | Boglárka Kapás Éva Risztov |
| Olympic Qualifying Time – 8:33.97 | 2 | Italy | Diletta Carli Martina De Memme |
| Olympic Qualifying Time – 8:33.97 | 2 | New Zealand | Lauren Boyle Emma Robinson |
| Olympic Qualifying Time – 8:33.97 | 2 | Slovenia | Anja Klinar Tjaša Oder |
| Olympic Qualifying Time – 8:33.97 | 2 | Spain | Mireia Belmonte María Vilas |
| Olympic Qualifying Time – 8:33.97 | 2 | United States | Katie Ledecky Leah Smith |
| Olympic Qualifying Time – 8:33.97 | 1 | Bahamas | Joanna Evans |
| Olympic Qualifying Time – 8:33.97 | 1 | Canada | Brittany MacLean |
| Olympic Qualifying Time – 8:33.97 | 1 | Chile | Kristel Köbrich |
| Olympic Qualifying Time – 8:33.97 | 1 | Denmark | Lotte Friis |
| Olympic Qualifying Time – 8:33.97 | 1 | France | Coralie Balmy |
| Olympic Qualifying Time – 8:33.97 | 1 | Guatemala | Valerie Gruest |
| Olympic Qualifying Time – 8:33.97 | 1 | Netherlands | Sharon van Rouwendaal |
| Olympic Qualifying Time – 8:33.97 | 1 | Russia | Arina Openysheva |
| Olympic Qualifying Time – 8:33.97 | 1 | Venezuela | Andreina Pinto |
| Olympic Selection Time – 8:51.96 | 1 | Liechtenstein | Julia Hassler |
| Olympic Selection Time – 8:51.96 | 1 | Portugal | Tamila Holub |
| Universality Places | 1 | Ivory Coast | Talita Te Flan |
| Total | 32 | | |

#### Women's 100 m backstroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:00.25 | 2 | Australia | Emily Seebohm Madison Wilson |
| Olympic Qualifying Time – 1:00.25 | 2 | Canada | Dominique Bouchard Kylie Masse |
| Olympic Qualifying Time – 1:00.25 | 2 | China | Fu Yuanhui Wang Xueer |
| Olympic Qualifying Time – 1:00.25 | 2 | United States | Kathleen Baker Olivia Smoliga |
| Olympic Qualifying Time – 1:00.25 | 1 | Brazil | Etiene Medeiros |
| Olympic Qualifying Time – 1:00.25 | 1 | Denmark | Mie Nielsen |
| Olympic Qualifying Time – 1:00.25 | 1 | Great Britain | Georgia Davies |
| Olympic Qualifying Time – 1:00.25 | 1 | Hungary | Katinka Hosszú |
| Olympic Qualifying Time – 1:00.25 | 1 | Iceland | Eygló Ósk Gústafsdóttir |
| Olympic Qualifying Time – 1:00.25 | 1 | Japan | Natsumi Sakai |
| Olympic Qualifying Time – 1:00.25 | 1 | Netherlands | Kira Toussaint |
| Olympic Qualifying Time – 1:00.25 | 1 | Russia | Anastasia Fesikova |
| Olympic Qualifying Time – 1:00.25 | 1 | Slovakia | Katarína Listopadová |
| Olympic Qualifying Time – 1:00.25 | 1 | Ukraine | Daryna Zevina |
| Olympic Qualifying Time – 1:00.25 | 1 | Zimbabwe | Kirsty Coventry |
| Olympic Selection Time – 1.02.36 | 1 | Croatia | Matea Samardžić |
| Olympic Selection Time – 1.02.36 | 1 | Czech Republic | Simona Baumrtová |
| Olympic Selection Time – 1.02.36 | 1 | Finland | Mimosa Jallow |
| Olympic Selection Time – 1.02.36 | 1 | Hong Kong | Claudia Lau |
| Olympic Selection Time – 1.02.36 | 1 | Israel | Andrea Murez |
| Olympic Selection Time – 1.02.36 | 1 | Kazakhstan | Yekaterina Rudenko |
| Olympic Selection Time – 1.02.36 | 1 | Poland | Alicja Tchorz |
| Olympic Selection Time – 1.02.36 | 1 | Seychelles | Alexus Laird |
| Olympic Selection Time – 1.02.36 | 1 | Spain | Duane da Rocha |
| Olympic Selection Time – 1.02.36 | 1 | Sweden | Michelle Coleman |
| Universality Places | 1 | Cayman Islands | Lara Butler |
| Universality Places | 1 | Kenya | Talisa Lanoe |
| Universality Places | 1 | Kosovo | Rita Zeqiri |
| Universality Places | 1 | Nepal | Gaurika Singh |
| Universality Places | 1 | Samoa | Evelina Afoa |
| Universality Places | 1 | Sri Lanka | Kimiko Raheem |
| Universality Places | 1 | Virgin Islands | Caylee Watson |
| Total | 36 | | |

#### Women's 200 m backstroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:10.60 | 2 | Australia | Belinda Hocking Emily Seebohm |
| Olympic Qualifying Time – 2:10.60 | 2 | Canada | Dominique Bouchard Hilary Caldwell |
| Olympic Qualifying Time – 2:10.60 | 2 | China | Chen Jie Liu Yaxin |
| Olympic Qualifying Time – 2:10.60 | 2 | Germany | Lisa Graf Jenny Mensing |
| Olympic Qualifying Time – 2:10.60 | 2 | Hungary | Réka György Katinka Hosszú |
| Olympic Qualifying Time – 2:10.60 | 2 | Spain | Duane da Rocha África Zamorano |
| Olympic Qualifying Time – 2:10.60 | 2 | United States | Maya DiRado Missy Franklin |
| Olympic Qualifying Time – 2:10.60 | 1 | Croatia | Matea Samardžić |
| Olympic Qualifying Time – 2:10.60 | 1 | Czech Republic | Simona Baumrtová |
| Olympic Qualifying Time – 2:10.60 | 1 | Hong Kong | Claudia Lau |
| Olympic Qualifying Time – 2:10.60 | 1 | Iceland | Eygló Ósk Gústafsdóttir |
| Olympic Qualifying Time – 2:10.60 | 1 | Italy | Margherita Panziera |
| Olympic Qualifying Time – 2:10.60 | 1 | Japan | Natsumi Sakai |
| Olympic Qualifying Time – 2:10.60 | 1 | Poland | Alicja Tchórz |
| Olympic Qualifying Time – 2:10.60 | 1 | Russia | Anastasia Fesikova |
| Olympic Qualifying Time – 2:10.60 | 1 | Ukraine | Daryna Zevina |
| Olympic Qualifying Time – 2:10.60 | 1 | Zimbabwe | Kirsty Coventry |
| Olympic Selection Time – 2:15.17 | 1 | Switzerland | Martina van Berkel |
| Olympic Selection Time – 2:15.17 | 1 | Turkey | Ekaterina Avramova |
| Universality Places | 1 | Indonesia | Yessy Yosaputra |
| Total | 27 | | |

#### Women's 100 m breaststroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 1:07.85 | 2 | Australia | Georgia Bohl Taylor McKeown |
| Olympic Qualifying Time – 1:07.85 | 2 | Canada | Rachel Nicol Kierra Smith |
| Olympic Qualifying Time – 1:07.85 | 2 | China | Shi Jinglin Zhang Xinyu |
| Olympic Qualifying Time – 1:07.85 | 2 | Great Britain | Molly Renshaw Chloe Tutton |
| Olympic Qualifying Time – 1:07.85 | 2 | Italy | Martina Carraro Arianna Castiglioni |
| Olympic Qualifying Time – 1:07.85 | 2 | Japan | Satomi Suzuki Kanako Watanabe |
| Olympic Qualifying Time – 1:07.85 | 2 | Sweden | Sophie Hansson Jennie Johansson |
| Olympic Qualifying Time – 1:07.85 | 2 | United States | Lilly King Katie Meili |
| Olympic Qualifying Time – 1:07.85 | 1 | Belgium | Fanny Lecluyse |
| Olympic Qualifying Time – 1:07.85 | 1 | Denmark | Rikke Møller Pedersen |
| Olympic Qualifying Time – 1:07.85 | 1 | Finland | Jenna Laukkanen |
| Olympic Qualifying Time – 1:07.85 | 1 | Hong Kong | Yvette Kong |
| Olympic Qualifying Time – 1:07.85 | 1 | Iceland | Hrafnhildur Lúthersdóttir |
| Olympic Qualifying Time – 1:07.85 | 1 | Ireland | Fiona Doyle |
| Olympic Qualifying Time – 1:07.85 | 1 | Israel | Amit Ivry |
| Olympic Qualifying Time – 1:07.85 | 1 | Jamaica | Alia Atkinson |
| Olympic Qualifying Time – 1:07.85 | 1 | Lithuania | Rūta Meilutytė |
| Olympic Qualifying Time – 1:07.85 | 1 | Spain | Jessica Vall |
| Olympic Qualifying Time – 1:07.85 | 1 | Russia | Daria Chikunova |
| Olympic Qualifying Time – 1:07.85 | 1 | Turkey | Zeynep Güneş |
| Olympic Selection Time – 1:10.22 | 1 | Czech Republic | Martina Moravčíková |
| Olympic Selection Time – 1:10.22 | 1 | Estonia | Maria Romanjuk |
| Olympic Selection Time – 1:10.22 | 1 | Hungary | Anna Sztankovics |
| Olympic Selection Time – 1:10.22 | 1 | Malaysia | Phee Jinq En |
| Olympic Selection Time – 1:10.22 | 1 | Moldova | Tatiana Chişca |
| Olympic Selection Time – 1:10.22 | 1 | Slovenia | Tjaša Vozel |
| Universality Places | 1 | Georgia | Teona Bostashvili |
| Universality Places | 1 | Guam | Pilar Shimizu |
| Universality Places | 1 | Kyrgyzstan | Dariya Talanova |
| Universality Places | 1 | Libya | Daniah Hagul |
| Universality Places | 1 | Nigeria | Rechael Tonjor |
| Universality Places | 1 | Saint Vincent and the Grenadines | Izzy Joachim |
| Universality Places | 1 | Suriname | Evita Leter |
| Universality Places | 1 | Turkmenistan | Darya Semyonova |
| Universality Places | 1 | Uganda | Jamila Lunkuse |
| Total | 43 | | |

#### Women's 200 m breaststroke

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:26.94 | 2 | Australia | Georgia Bohl Taylor McKeown |
| Olympic Qualifying Time – 2:26.94 | 2 | Canada | Kierra Smith Martha McCabe |
| Olympic Qualifying Time – 2:26.94 | 2 | China | Shi Jinglin Yu Jingyao |
| Olympic Qualifying Time – 2:26.94 | 2 | Great Britain | Molly Renshaw Chloe Tutton |
| Olympic Qualifying Time – 2:26.94 | 2 | Hungary | Dalma Sebestyén Anna Sztankovics |
| Olympic Qualifying Time – 2:26.94 | 2 | Japan | Rie Kaneto Kanako Watanabe |
| Olympic Qualifying Time – 2:26.94 | 2 | United States | Lilly King Molly Hannis |
| Olympic Qualifying Time – 2:26.94 | 1 | Belgium | Fanny Lecluyse |
| Olympic Qualifying Time – 2:26.94 | 1 | Czech Republic | Martina Moravčíková |
| Olympic Qualifying Time – 2:26.94 | 1 | Denmark | Rikke Møller Pedersen |
| Olympic Qualifying Time – 2:26.94 | 1 | Finland | Jenna Laukkanen |
| Olympic Qualifying Time – 2:26.94 | 1 | Iceland | Hrafnhildur Lúthersdóttir |
| Olympic Qualifying Time – 2:26.94 | 1 | South Korea | Back Su-yeon |
| Olympic Qualifying Time – 2:26.94 | 1 | Spain | Jessica Vall |
| Olympic Qualifying Time – 2:26.94 | 1 | Russia | Sofiya Andreeva |
| Olympic Qualifying Time – 2:26.94 | 1 | Turkey | Zeynep Güneş |
| Olympic Selection Time – 2:32.08 | 1 | Argentina | Julia Sebastián |
| Olympic Selection Time – 2:32.08 | 1 | Hong Kong | Yvette Kong |
| Olympic Selection Time – 2:32.08 | 1 | Ireland | Fiona Doyle |
| Olympic Selection Time – 2:32.08 | 1 | Israel | Amit Ivry |
| Olympic Selection Time – 2:32.08 | 1 | Sweden | Sophie Hansson |
| Universality Places | 1 | Latvia | Aļona Ribakova |
| Total | 29 | | |

#### Women's 100 m butterfly

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 58.74 | 2 | Australia | Madeline Groves Emma McKeon |
| Olympic Qualifying Time – 58.74 | 2 | Brazil | Daynara de Paula Daiene Dias |
| Olympic Qualifying Time – 58.74 | 2 | Canada | Penny Oleksiak Noemie Thomas |
| Olympic Qualifying Time – 58.74 | 2 | China | Chen Xinyi Lu Ying |
| Olympic Qualifying Time – 58.74 | 2 | France | Béryl Gastaldello Marie Wattel |
| Olympic Qualifying Time – 58.74 | 2 | Greece | Anna Ntountounaki Kristel Vourna* |
| Olympic Qualifying Time – 58.74 | 2 | Japan | Natsumi Hoshi Rikako Ikee |
| Olympic Qualifying Time – 58.74 | 2 | Russia | Svetlana Chimrova Natalya Lovtsova |
| Olympic Qualifying Time – 58.74 | 2 | Sweden | Louise Hansson Sarah Sjöström |
| Olympic Qualifying Time – 58.74 | 2 | United States | Kelsi Worrell Dana Vollmer |
| Olympic Qualifying Time – 58.74 | 1 | Belgium | Kimberly Buys |
| Olympic Qualifying Time – 58.74 | 1 | Czech Republic | Lucie Svěcená |
| Olympic Qualifying Time – 58.74 | 1 | Denmark | Jeanette Ottesen |
| Olympic Qualifying Time – 58.74 | 1 | Egypt | Farida Osman |
| Olympic Qualifying Time – 58.74 | 1 | Germany | Alexandra Wenk |
| Olympic Qualifying Time – 58.74 | 1 | Hungary | Liliána Szilágyi |
| Olympic Qualifying Time – 58.74 | 1 | Italy | Ilaria Bianchi |
| Olympic Qualifying Time – 58.74 | 1 | New Zealand | Helena Gasson |
| Olympic Qualifying Time – 58.74 | 1 | Slovakia | Katarína Listopadová |
| Olympic Qualifying Time – 58.74 | 1 | South Korea | An Se-hyeon |
| Olympic Qualifying Time – 58.74 | 1 | Spain | Judit Ignacio |
| Olympic Selection Time – 1:00.80 | 1 | Bahamas | Arianna Vanderpool-Wallace |
| Olympic Selection Time – 1:00.80 | 1 | Israel | Amit Ivry |
| Olympic Selection Time – 1:00.80 | 1 | Singapore | Quah Ting Wen |
| Olympic Selection Time – 1:00.80 | 1 | Switzerland | Danielle Villars |
| Olympic Selection Time – 1:00.80 | 1 | Ukraine | Darya Stepanyuk |
| Universality Places | 1 | Bosnia and Herzegovina | Amina Kajtaz |
| Universality Places | 1 | Costa Rica | Marie Laura Meza |
| Universality Places | 1 | Cyprus | Sotiria Neofytou |
| Universality Places | 1 | Grenada | Oreoluwa Cherebin |
| Universality Places | 1 | Mozambique | Jannah Sonnenschein |
| Universality Places | 1 | Nicaragua | Dalia Torrez Zamora |
| Universality Places | 1 | Qatar | Nada Arkaji |
| Universality Places | 1 | Refugee Olympic Team | Yusra Mardini |
| Universality Places | 1 | Rwanda | Johanna Umurungi |
| Universality Places | 1 | Yemen | Nooran Ba Matraf |
| Total | 46 | | |

#### Women's 200 m butterfly

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:09.33 | 2 | Australia | Madeline Groves Brianna Throssell |
| Olympic Qualifying Time – 2:09.33 | 2 | China | Zhang Yufei Zhou Yilin |
| Olympic Qualifying Time – 2:09.33 | 2 | Hungary | Katinka Hosszú Liliána Szilágyi |
| Olympic Qualifying Time – 2:09.33 | 2 | Italy | Alessia Polieri Stefania Pirozzi |
| Olympic Qualifying Time – 2:09.33 | 2 | Japan | Suzuka Hasegawa Natsumi Hoshi |
| Olympic Qualifying Time – 2:09.33 | 2 | South Korea | An Se-hyeon Park Jin-young |
| Olympic Qualifying Time – 2:09.33 | 2 | Spain | Mireia Belmonte Judit Ignacio |
| Olympic Qualifying Time – 2:09.33 | 2 | United States | Cammile Adams Hali Flickinger |
| Olympic Qualifying Time – 2:09.33 | 1 | Canada | Audrey Lacroix |
| Olympic Qualifying Time – 2:09.33 | 1 | France | Lara Grangeon |
| Olympic Qualifying Time – 2:09.33 | 1 | Germany | Franziska Hentke |
| Olympic Qualifying Time – 2:09.33 | 1 | Great Britain | Aimee Willmott |
| Olympic Qualifying Time – 2:09.33 | 1 | Slovenia | Anja Klinar |
| Olympic Qualifying Time – 2:09.33 | 1 | Switzerland | Martina van Berkel |
| Olympic Selection Time – 2:13.86 | 1 | Argentina | Virginia Bardach |
| Olympic Selection Time – 2:13.86 | 1 | Brazil | Joanna Melo |
| Olympic Selection Time – 2:13.86 | 1 | New Zealand | Helena Gasson |
| Olympic Selection Time – 2:13.86 | 1 | Turkey | Nida Eliz Üstündağ |
| Olympic Selection Time – 2:13.86 | 1 | Venezuela | Andreina Pinto |
| Universality Places | 1 | Panama | María Far Núñez |
| Total | 28 | | |

#### Women's 200 m individual medley

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 2:14.26 | 2 | Australia | Alicia Coutts Kotuku Ngawati |
| Olympic Qualifying Time – 2:14.26 | 2 | Austria | Lena Kreundl Lisa Zaiser |
| Olympic Qualifying Time – 2:14.26 | 2 | Canada | Sydney Pickrem Erika Seltenreich-Hodgson |
| Olympic Qualifying Time – 2:14.26 | 2 | China | Ye Shiwen Zhou Min |
| Olympic Qualifying Time – 2:14.26 | 2 | Czech Republic | Simona Baumrtová Barbora Závadová |
| Olympic Qualifying Time – 2:14.26 | 1 | Great Britain | Hannah Miley Siobhan-Marie O'Connor |
| Olympic Qualifying Time – 2:14.26 | 2 | Hungary | Katinka Hosszú Zsuzsanna Jakabos |
| Olympic Qualifying Time – 2:14.26 | 2 | Italy | Sara Franceschi Luisa Trombetti |
| Olympic Qualifying Time – 2:14.26 | 2 | Japan | Runa Imai Miho Teramura |
| Olympic Qualifying Time – 2:14.26 | 2 | South Korea | Kim Seo-yeong Nam Yoo-sun |
| Olympic Qualifying Time – 2:14.26 | 2 | Spain | Mireia Belmonte África Zamorano |
| Olympic Qualifying Time – 2:14.26 | 2 | Sweden | Stina Gardell Louise Hansson |
| Olympic Qualifying Time – 2:14.26 | 2 | United States | Maya DiRado Melanie Margalis |
| Olympic Qualifying Time – 2:14.26 | 1 | Argentina | Virginia Bardach |
| Olympic Qualifying Time – 2:14.26 | 1 | Brazil | Joanna Melo |
| Olympic Qualifying Time – 2:14.26 | 1 | Finland | Tanja Kylliäinen |
| Olympic Qualifying Time – 2:14.26 | 1 | France | Lara Grangeon |
| Olympic Qualifying Time – 2:14.26 | 1 | Germany | Alexandra Wenk |
| Olympic Qualifying Time – 2:14.26 | 1 | Hong Kong | Siobhán Haughey |
| Olympic Qualifying Time – 2:14.26 | 1 | Iceland | Hrafnhildur Lúthersdóttir |
| Olympic Qualifying Time – 2:14.26 | 1 | Netherlands | Marrit Steenbergen |
| Olympic Qualifying Time – 2:14.26 | 1 | Russia | Viktoriya Andreeva |
| Olympic Qualifying Time – 2:14.26 | 1 | Switzerland | Maria Ugolkova |
| Olympic Qualifying Time – 2:14.26 | 1 | Uzbekistan | Ranohon Amanova |
| Olympic Qualifying Time – 2:14.26 | 1 | Vietnam | Nguyễn Thị Ánh Viên |
| Olympic Selection Time – 2:18.96 | 1 | Israel | Amit Ivry |
| Olympic Selection Time – 2:18.96 | 1 | Poland | Katarzyna Baranowska |
| Olympic Selection Time – 2:18.96 | 1 | Portugal | Victoria Kaminskaya |
| Olympic Selection Time – 2:18.96 | 1 | Serbia | Anja Crevar |
| Universality Places | 0 | — | — |
| Total | 43 | | |

#### Women's 400 m individual medley

| Qualification standard | No. of athletes | NOC | Qualified swimmers |
| Olympic Qualifying Time – 4:43.46 | 2 | Australia | Blair Evans Keryn McMaster |
| Olympic Qualifying Time – 4:43.46 | 2 | Canada | Emily Overholt Sydney Pickrem |
| Olympic Qualifying Time – 4:43.46 | 2 | China | Ye Shiwen Zhou Min |
| Olympic Qualifying Time – 4:43.46 | 2 | France | Lara Grangeon Fantine Lesaffre |
| Olympic Qualifying Time – 4:43.46 | 2 | Great Britain | Hannah Miley Aimee Willmott |
| Olympic Qualifying Time – 4:43.46 | 2 | Hungary | Katinka Hosszú Zsuzsanna Jakabos |
| Olympic Qualifying Time – 4:43.46 | 2 | Italy | Sara Franceschi Luisa Trombetti |
| Olympic Qualifying Time – 4:43.46 | 2 | Japan | Sakiko Shimizu Miho Takahashi |
| Olympic Qualifying Time – 4:43.46 | 2 | Spain | Mireia Belmonte María Vilas |
| Olympic Qualifying Time – 4:43.46 | 2 | United States | Elizabeth Beisel Maya DiRado |
| Olympic Qualifying Time – 4:43.46 | 1 | Argentina | Virginia Bardach |
| Olympic Qualifying Time – 4:43.46 | 1 | Brazil | Joanna Melo |
| Olympic Qualifying Time – 4:43.46 | 1 | Czech Republic | Barbora Závadová |
| Olympic Qualifying Time – 4:43.46 | 1 | Germany | Franziska Hentke |
| Olympic Qualifying Time – 4:43.46 | 1 | Portugal | Victoria Kaminskaya |
| Olympic Qualifying Time – 4:43.46 | 1 | Serbia | Anja Crevar |
| Olympic Qualifying Time – 4:43.46 | 1 | Slovenia | Anja Klinar |
| Olympic Qualifying Time – 4:43.46 | 1 | Turkey | Zeynep Güneş |
| Olympic Qualifying Time – 4:43.46 | 1 | Uzbekistan | Ranohon Amanova |
| Olympic Qualifying Time – 4:43.46 | 1 | Vietnam | Nguyễn Thị Ánh Viên |
| Olympic Selection Time – 4:53.68 | 1 | Austria | Jördis Steinegger |
| Olympic Selection Time – 4:53.68 | 1 | Croatia | Matea Samardžić |
| Olympic Selection Time – 4:53.68 | 1 | Finland | Tanja Kylliäinen |
| Olympic Selection Time – 4:53.68 | 1 | Switzerland | Martina van Berkel |
| Universality Places | 0 | — | — |
| Total | 34 | | |

## Relay events
### Men's 4 × 100 m freestyle relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 11 | Russia Brazil Italy France Japan Canada Poland China Belgium Germany United States |
| Best times of non-qualifiers | 5 | Australia Greece Romania Hungary Spain |
| Total | 16 | |

### Men's 4 × 200 m freestyle relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 12 | Australia United States Great Britain Germany Poland Netherlands Russia Belgium Spain Japan France Denmark |
| Best times of non-qualifiers | 4 | Italy Brazil Hungary South Africa |
| Total | 16 | |

### Men's 4 × 100 m medley relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 12 | United States Australia France Japan Germany Great Britain Poland Russia Italy Brazil China Lithuania |
| Best times of non-qualifiers | 4 | South Africa Hungary Canada Greece |
| Total | 16 | |

### Women's 4 × 100 m freestyle relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 12 | Australia Netherlands United States Sweden Canada China Italy France Japan Russia Brazil Poland |
| Best times of non-qualifiers | 4 | Denmark Spain Switzerland Israel |
| Total | 16 | |

### Women's 4 × 200 m freestyle relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 12 | Italy United States Australia Sweden China Japan Great Britain France Russia Brazil Canada Germany |
| Best times of non-qualifiers | 4 | Hungary Netherlands Spain Slovenia |
| Total | 16 | |

### Women's 4 × 100 m medley relay

| Qualification event | No. of teams | Qualified teams |
| 2015 World Championships | 12 | China United States Sweden Australia Denmark Canada Italy Russia Germany France Great Britain Japan |
| Best times of non-qualifiers | 4 | Finland Brazil Czech Republic Hong Kong |
| Total | 16 | |

## Open water events
### Timeline

| Event | Date | Venue |
| 2015 World Aquatics Championships | 24 July – 9 August 2015 | Kazan |
| 2016 FINA Olympic Marathon Swim Qualifier | 11–12 June 2016 | Setúbal |
| Re-allocation of unused quota | 12–18 June 2016 | – |

### Men's 10 km marathon

| Qualification event | No. of athletes | Qualified athletes |
| 2015 World Championships | 10 | Jordan Wilimovsky (USA) Ferry Weertman (NED) Spyridon Gianniotis (GRE) Sean Ryan (USA) Jack Burnell (GBR) Marc-Antoine Olivier (FRA) Simone Ruffini (ITA) Richard Weinberger (CAN) Allan do Carmo (BRA) Federico Vanelli (ITA) |
| 2016 Olympic Marathon Swim Qualifier | 10 | Zu Lijun (CHN) Christian Reichert (GER) Ivan Enderica Ochoa (ECU) Evgeny Drattsev (RUS) Richárd Nagy (SVK) Oussama Mellouli (TUN) Jarrod Poort (AUS) Yasunari Hirai (JPN) Chad Ho (RSA) Ventsislav Aydarski (BUL)° |
| Continental Qualifier | 5 | Márk Papp (HUN) Erwin Maldonado (VEN) Kane Radford (NZL) Vitaliy Khudyakov (KAZ) Marwan El-Amrawy (EGY) |
| Total | 25 | |
° Unused host quota place ^ Unused continental quota place

### Women's 10 km marathon

| Qualification event | No. of athletes | Qualified athletes |
| 2015 World Championships | 10 | Aurélie Muller (FRA) Sharon van Rouwendaal (NED) Ana Marcela Cunha (BRA) Rachele Bruni (ITA) Anastasiya Krapyvina (RUS) Poliana Okimoto (BRA) Isabelle Härle (GER) Kalliopi Araouzou (GRE) Haley Anderson (USA) Éva Risztov (HUN) Anna Olasz (HUN) |
| 2016 Olympic Marathon Swim Qualifier | 10 | Xin Xin (CHN) Keri-anne Payne (GBR) Samantha Arévalo (ECU) Chelsea Gubecka (AUS) Yumi Kida (JPN) Michelle Weber (RSA) Joanna Zachoszcz (POL) Paola Pérez (VEN) Špela Perše (SLO) Jana Pechanová (CZE)° Erika Villaécija (ESP)^ |
| Continental Qualifier | 5 | Vânia Neves (POR) Stephanie Horner (CAN) Heidi Gan (MAS) Reem Kaseem (EGY) |
| Total | 25 | |
° Unused host quota place ^ Unused continental quota place