# 2024 World Athletics U20 Championships – Women's 4 × 100 metres relay

The women's 4 × 100 metres relay at the 2024 World Athletics U20 Championships was held at the Estadio Atlético de la VIDENA in Lima, Peru on 30 and 31 August 2024.

## Records

U20 standing records prior to the 2024 World Athletics U20 Championships were as follows:
| Record | Nation | Mark | Location | Date |
| World U20 Record | Jamaica | 42.51 | Cali, Colombia | 5 August 2022 |
| Championship Record | Jamaica | 42.51 | Cali, Colombia | 5 August 2022 |
| World U20 Leading | Switzerland | 42.91 | Willemstad, Curaçao | 30 March 2024 |

## Results
### Heats

First 2 of each heat (Q) plus 2 fastest times (q) qualify to Final.

#### Heat 1

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 3 | Switzerland | Timea Rankl, Lia Thalmann, Chloé Rabac, Alicia Masini | 44.88 | Q, SB |
| 2 | 5 | Canada | Savannah Blair, Dianna Proctor, Renée Tedga, Kiara Webb | 45.23 | Q, SB |
| 3 | 6 | Ukraine | Anna Karandukova, Diana Myroshnichenko, Uliana Stepaniuk, Alina Kyshkina | 45.26 | q |
| 4 | 4 | Spain | Ericka Maseras, Ivana Peralta, Carla Martínez, Jazmin Romeu | 45.84 | |
| 5 | 9 | Chile | Sofia Segura, Antonia Ramírez, Catalina Rozas, Blanca Yarur | 46.15 | |
| 6 | 8 | Ecuador | Camille Romero, Xiomara Ibarra, Génesis Cañola, Marolyn Pastrana | 47.43 | |
| – | 2 | Germany | Philina Schwartz, Sherin Kimuanga, Annika Just, Holly Okuku | DNF | |
| – | 7 | Great Britain | Mabel Akande, Kissiwaa Mensah, Faith Akinbileje, Jasmine Wilkins | DQ | TR24.7[L] |

#### Heat 2

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 7 | United States | Jade Brown, Cynteria James, Avery Lewis, Davenae Fagan | 44.22 | Q, SB |
| 2 | 8 | Australia | Thewbelle Philp, Olivia Inkster, Olivia Dodds, Aleksandra Stoilova | 44.76 | Q |
| 3 | 2 | Poland | Oliwia Kasprzak, Jagoda Żukowska, Inga Kanicka, Julia Adamczyk | 45.00 | q |
| 4 | 6 | India | Ruiula Bhonsle, Neole Cornelio, Abinaya Rajarajan, Sudheeksha Vadluri | 45.31 | NU20R |
| 5 | 4 | South Africa | Lana Oberholzer, Kaili Botje, Roline Louw, Atang Naane | 46.61 | SB |
| 6 | 3 | Peru | Luciana Cateriano, Bianca Conroy, María Alondra, Cayetana Chirinos | 49.31 | |
| – | 5 | Trinidad and Tobago | Kenniyah Guischard-Yearwood, Janae De Gannes, Akira Malaver, Alexxe Henry | DQ | TR24.7[L] |
| – | 9 | Hungary | | DNS | |

#### Heat 3

| Rank | Lane | Nation | Athletes | Time | Notes |
| 1 | 8 | Jamaica | Sabrina Dockery, Alliah Baker, Briana Campbell, Alana Reid | 43.81 | Q |
| 2 | 9 | Puerto Rico | Legna Echevarria, Frances Colon, Amanda Andino, Karina Franceschi | 45.28 | Q, NU20R |
| 3 | 6 | Italy | Elisa Marcello, Agnese Musica, Melissa Turchi, Rachele Torchio | 45.55 | |
| 4 | 4 | Slovenia | Lucija Potnik, Pika Bikar Kern, Karolina Zbičajnik, Lina Hribar | 45.63 | NU20R |
| 5 | 7 | Botswana | Wedu Matiwe, Same Mhutsiwa, Kelebonye Otela, Sethunya Majama | 46.43 | NU20R |
| – | 5 | Brazil | Larissa Souza, Vanessa dos Santos, Hemily De Jesus, Hakelly da Silva | DQ | TR24.7[L] |
| – | 3 | France | Nina Thevenin, Shana Lambourde, Vanessa Lokuli, Romane Colletin | DQ | TR24.7[L] |
| – | 2 | Nigeria | Justina Eyakpobeyan, Prestina Ochonogor, Favour Onyah, Precious Nzeakor | DQ | TR24.7[L] |

### Final

| Rank | Lane | Nation | Athletes | Time | Notes |
| | 7 | Jamaica | Shanova Douglas, Alliah Baker, Briana Campbell, Alana Reid | 43.49 | SB |
| | 8 | Switzerland | Timea Rankl, Lia Thalmann, Chloé Rabac, Alicia Masini | 44.06 | NU20R |
| | 9 | Canada | Savannah Blair, Dianna Proctor, Ashley Odiase, Renée Tedga | 44.60 | SB |
| 4 | 2 | Poland | Oliwia Zimoląg, Jagoda Żukowska, Inga Kanicka, Julia Adamczyk | 44.95 | |
| 5 | 4 | Puerto Rico | Legna Echevarria, Frances Colon, Amanda Andino, Karina Franceschi | 45.61 | |
| 6 | 3 | Ukraine | Anna Karandukova, Diana Myroshnichenko, Uliana Stepaniuk, Alina Kyshkina | 45.64 | |
| – | 5 | Australia | Aleksandra Stoilova, Torrie Lewis, Olivia Inkster, Jessica Milat, | DQ | TR24.7[L] |
| – | 6 | United States | Jade Brown, Cynteria James, Avery Lewis, Taylor Snaer | DQ | TR24.7[L] |