# 2014 FINA World Swimming Championships (25 m) – 4 × 50 metre mixed medley relay

The 4 × 50 metre mixed medley relay competition of the 2014 FINA World Swimming Championships (25 m) was held on 4 December.

## Records

Prior to the competition, the existing world and championship records were as follows.
| | Nation | Time | Location | Date |
| World record | United States | 1:37.17 | Glasgow | 21 December 2013 |

## Results
### Heats

The heats were held at 12:06.
| Rank | Heat | Lane | Nation | Swimmers | Time | Notes |
| 1 | 3 | 4 | Great Britain | Chris Walker-Hebborn (23.47) Adam Peaty (25.78) Siobhan-Marie O'Connor (25.59) Fran Halsall (23.32) | 1:38.16 | Q |
| 2 | 3 | 5 | United States | Eugene Godsoe (23.30) Brad Craig (26.35) Felicia Lee (25.58) Natalie Coughlin (23.55) | 1:38.78 | Q |
| 3 | 2 | 3 | Italy | Simone Sabbioni (23.91) Fabio Scozzoli (26.02) Silvia Di Pietro (25.46) Erika Ferraioli (23.52) | 1:38.91 | Q |
| 4 | 1 | 1 | Russia | Sergey Fesikov (23.28) Sergey Geybel (25.97) Svetlana Chimrova (25.75) Rozaliya Nasretdinova (24.37) | 1:39.37 | Q |
| 5 | 3 | 1 | Brazil | Etiene Medeiros (26.44) João Luiz Gomes Júnior (26.34) Henrique Martins (22.56) Daiane Oliveira (24.26) | 1:39.60 | Q |
| 6 | 2 | 1 | Germany | Christian Diener (23.33) Dorothea Brandt (29.99) Steffen Deibler (22.64) Daniela Schreiber (24.12) | 1:40.08 | Q |
| 7 | 1 | 5 | China | Sun Xiaolei (23.78) Suo Ran (30.16) Lu Ying (25.45) Ning Zetao (20.87) | 1:40.26 | Q |
| 8 | 2 | 2 | Ukraine | Daryna Zevina (26.30) Mariya Liver (29.66) Andriy Hovorov (22.60) Bogdan Plavin (21.79) | 1:40.35 | Q |
| 9 | 2 | 5 | Czech Republic | Simona Baumrtová (26.56) Petr Bartůněk (26.36) Jan Šefl (23.13) Anna Kolárová (24.72) | 1:40.77 | |
| 10 | 1 | 4 | Japan | Yuki Shirai (23.97) Satomi Suzuki (30.18) Takuro Fujii (22.99) Yayoi Matsumoto (24.64) | 1:41.78 | |
| 11 | 1 | 3 | Norway | Lavrans Solli (23.93) Sverre Naess (27.26) Elise Olsen (26.20) Cecilie Johannessen (24.68) | 1:42.07 | |
| 12 | 3 | 6 | South Africa | Ricky Ellis (24.24) Giulio Zorzi (26.45) Trudi Maree (27.18) Lehesta Kemp (24.66) | 1:42.53 | |
| 13 | 3 | 2 | Hungary | Gábor Balog (24.45) David Horváth (27.44) Liliána Szilágyi (26.65) Fanni Gyurinovics (25.66) | 1:44.20 | |
| 14 | 1 | 2 | Hong Kong | Stephanie Au (27.63) Wong Chun Yan (27.62) Chan Kin Lok (27.25) Mak Ho Lun Raymond (22.11) | 1:44.61 | |
| 15 | 3 | 0 | Turkey | Ekaterina Avramova (27.52) Alpkan Örnek (28.54) Sezin Eligül (27.58) Hüseyin Sakçı (22.36) | 1:46.00 | |
| 16 | 2 | 0 | Iceland | Eygló Ósk Gústafsdóttir (28.19) Hrafnhildur Lúthersdóttir (30.28) Daníel Hannes Pálsson (25.15) Davíð Hildiberg Aðalsteinsson (22.94) | 1:46.56 | |
| 17 | 1 | 6 | Algeria | Ryad Djendouci (25.32) Amira Raja Kouza (32.12) Jugurtha Boumali (24.05) Souad Nafissa Cherouati (26.07) | 1:47.56 | |
| 18 | 2 | 7 | Thailand | Araya Wongvat (29.32) Sittivech Kongsomrerk (28.50) Jenjira Srisa Ard (26.63) Gavin Alexander Lewis (23.18) | 1:47.63 | |
| 19 | 2 | 4 | Philippines | Roxanne Ashley Yu (30.20) Dhill Anderson Lee (29.50) Evangelio Dato (27.39) Jeremy Bryan Lim (23.58) | 1:50.67 | |
| 20 | 1 | 8 | Papua New Guinea | Ryan Pini (24.08) Savannah Tkatchenko (34.30) Stanford Kawale (25.67) Anna-Liza Mopio-Jane (26.66) | 1:50.71 | |
| 21 | 3 | 3 | Seychelles | Alexus Laird (28.59) Pierre-Andre Adam (30.11) Felicity Passon (28.63) Dean Hoffman (24.17) | 1:51.50 | |
| 22 | 3 | 7 | Mexico | Daniel Carranza (24.51) Andrés Olvera (30.25) Montserrat Ortuño (29.63) Ayumi Macías (27.22) | 1:51.61 | |
| 23 | 1 | 7 | Macau | Yum Cheng Man (27.42) Lei On Kei (32.87) Chao Man Hou (24.55) Tan Chi Yan (27.04) | 1:51.88 | |
| 24 | 2 | 6 | Sri Lanka | Kimiko Raheem (30.35) Kiran Jasinghe (30.16) Cherantha de Silva (25.43) Machiko Raheem (26.64) | 1:52.58 | |
| 25 | 2 | 8 | Kenya | Hamdan Bayusuf (26.66) Micah Fernandes (29.83) Emily Muteti (29.46) Talisa Lanoe (27.28) | 1:53.23 | |
| 26 | 1 | 0 | Albania | Aleksander Ngresi (31.74) Deni Baholli (32.22) Diana Basho (33.13) Nikol Merizaj (28.47) | 2:05.56 | |
| — | 3 | 8 | Finland | Anni Alitalo (27.46) Jenna Laukkanen Riku Pöytäkivi Ari-Pekka Liukkonen | DSQ | |

### Final

The final were held at 20:18.
| Rank | Lane | Nation | Swimmers | Time | Notes |
| | 2 | Brazil | Etiene Medeiros (25.83) Felipe França Silva (25.45) Nicholas Santos (21.81) Larissa Oliveira (24.17) | 1:37.26 | SA |
| | 4 | Great Britain | Chris Walker-Hebborn (23.42) Adam Peaty (25.89) Siobhan-Marie O'Connor (25.10) Fran Halsall (23.05) | 1:37.46 | ER |
| | 3 | Italy | Niccolo Bonacchi (23.58) Fabio Scozzoli (25.55) Silvia Di Pietro (25.22) Erika Ferraioli (23.55) | 1:37.90 | |
| 4 | 5 | United States | Matt Grevers (23.28) Cody Miller (25.93) Felicia Lee (25.38) Abbey Weitzeil (23.57) | 1:38.16 | |
| 5 | 6 | Russia | Sergey Fesikov (23.17) Sergey Geybel (26.20) Anastasiia Liazeva (25.68) Rozaliya Nasretdinova (23.88) | 1:38.93 | |
| 6 | 1 | China | Sun Xiaolei (23.51) Suo Ran (30.28) Lu Ying (24.79) Ning Zetao (20.59) | 1:39.17 | |
| 7 | 7 | Germany | Christian Diener (23.30) Dorothea Brandt (29.59) Steffen Deibler (22.41) Daniela Schreiber (24.17) | 1:39.47 | |
| 8 | 8 | Ukraine | Daryna Zevina (26.10) Andriy Kovalenko (26.39) Andriy Hovorov (22.37) Hanna Dzerkal (24.62) | 1:39.48 | |