The Women's 4 × 100 metre medley relay competition at the 2024 World Aquatics Championships was held on 18 February 2024.

Records Prior to the competition, the existing world and championship records were as follows.

Results Heats The heats were held at 10:25.

Rank Heat Lane Nation Swimmers Time Notes 1 3 5 Ingrid Wilm (59.77)Sydney Pickrem (1:06.14)Rebecca Smith (57.81)Katerine Savard (54.91) 3:58.63 Q 2 3 3 Hanna Rosvall (1:01.23)Sophie Hansson (1:07.23)Louise Hansson (56.84)Michelle Coleman (54.05) 3:59.35 Q 3 2 4 Jaclyn Barclay (1:00.27)Abbey Harkin (1:08.15)Alexandria Perkins (57.21)Brianna Throssell (54.46) 4:00.09 Q 4 2 3 Kira Toussaint (1:00.82)Tes Schouten (1:08.36)Maaike de Waard (58.03)Kim Busch (54.88) 4:02.09 Q 5 2 5 Sun Mingxia (1:02.13)Yang Chang (1:06.50)Yu Yiting (57.84)Ai Yanhan (55.75) 4:02.22 Q 6 3 7 Stephanie Au (1:00.98)Siobhan Haughey (1:07.05)Natalie Kan (59.29)Camille Cheng (55.02) 4:02.34 Q 7 3 2 Francesca Pasquino (1:01.37)Arianna Castiglioni (1:06.75)Costanza Cocconcelli (58.35)Chiara Tarantino (56.15) 4:02.62 Q 8 2 6 Adela Piskorska (1:01.16)Dominika Sztandera (1:07.76)Paulina Peda (58.42)Kornelia Fiedkiewicz (55.29) 4:02.63 Q 9 3 8 Levenia Sim (1:02.58)Letitia Sim (1:06.41)Quah Jing Wen (58.89)Quah Ting Wen (55.00) 4:02.88 NR 10 3 1 Milla Drakopoulos (1:02.48)Lara van Niekerk (1:07.50)Erin Gallagher (57.99)Emma Chelius (55.57) 4:03.54 11 2 2 Carmen Weiler (1:01.31)Jimena Ruiz (1:08.67)Paula Juste (59.09)María Daza (54.94) 4:04.01 11 2 7 Theodora Drakou (1:01.47)Eleni Kontogeorgou (1:09.01)Anna Ntountounaki (57.79)Maria Thaleia Drasidou (55.74) 4:04.01 NR 13 1 4 Lora Komoróczy (1:01.83)Eszter Békési (1:09.43)Panna Ugrai (58.93)Petra Senánszky (55.06) 4:05.25 14 2 8 Camila Rebelo (1:01.13)Ana Rodrigues (1:08.89)Mariana Pacheco (59.00)Francisca Soares (56.24) 4:05.26 15 1 3 Janja Šegel (1:02.02)Tara Vovk (1:10.49)Hana Sekuti (1:00.40)Neža Klančar (54.56) 4:07.47 NR 16 2 1 Tayde Sansores (1:03.13)Melissa Rodríguez (1:08.35)María José Mata Cocco (1:00.53)Tayde Revilak (56.29) 4:08.30 17 3 0 Teia Salvino (1:03.76)Thanya Dela Cruz (1:10.13)Jasmine Alkhaldi (1:02.78)Kayla Sanchez (55.28) 4:11.95 18 2 0 Xeniya Ignatova (1:02.04)Adelaida Pchelintseva (1:11.98)Sofia Spodarenko (1:00.32)Diana Taszhanova (59.58) 4:13.92 19 3 9 Wu Yi-en (1:07.47)Lin Pei-wun (1:11.36)Applejean Gwinn (1:06.13)Huang Mei-chien (56.98) 4:21.94 1 5 Did not start 2 9 3 4 3 6 Song Jae-yun (1:02.11)Moon Su-a (1:10.21)Kim Seo-yeong (58.11)Hur Yeon-kyung Disqualified

Final The final was held at 20:55.

Rank Lane Nation Swimmers Time Notes 3 Iona Anderson (59.20)Abbey Harkin (1:07.21)Brianna Throssell (56.86)Shayna Jack (52.71) 3:55.98 5 Louise Hansson (59.93)Sophie Hansson (1:06.18)Sarah Sjöström (56.11)Michelle Coleman (54.13) 3:56.35 4 Ingrid Wilm (58.95)Sophie Angus (1:06.24)Rebecca Smith (58.28)Taylor Ruck (52.96) 3:56.43 4 2 Sun Mingxia (1:02.20)Tang Qianting (1:05.15)Yu Yiting (57.16)Ai Yanhan (54.65) 3:59.16 5 6 Kira Toussaint (1:00.26)Tes Schouten (1:07.53)Maaike de Waard (58.16)Kim Busch (54.29) 4:00.24 6 1 Francesca Pasquino (1:01.03)Benedetta Pilato (1:06.56)Costanza Cocconcelli (58.12)Chiara Tarantino (54.63) 4:00.34 7 8 Adela Piskorska (1:01.24)Dominika Sztandera (1:07.46)Paulina Peda (58.49)Kornelia Fiedkiewicz (54.54) 4:01.73 8 7 Stephanie Au (1:01.29)Siobhan Haughey (1:06.82)Natalie Kan (59.95)Camille Cheng (55.09) 4:03.15

References