The Women's 4 × 50 metre medley relay competition of the 2021 FINA World Swimming Championships (25 m) was held on 17 December 2021.

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

The following new records were set during this competition: Date Event Name Nation Time Record 17 December Final Louise Hansson (25.91)Sophie Hansson (29.07)Sarah Sjöström (23.96)Michelle Coleman (23.44) 1:42.38 =

Results Heats The heats were started at 09:30.Heats results

Rank Heat Lane Nation Swimmers Time Notes 1 1 1 Katharine Berkoff (25.88)Emily Escobedo (30.32)Claire Curzan (24.87)Kate Douglass (23.43) 1:44.50 Q 2 2 7 Kylie Masse (26.12)Sydney Pickrem (29.87)Katerine Savard (25.54)Maggie Mac Neil (23.64) 1:45.17 Q, NR 3 2 5 Silvia Scalia (26.92)Arianna Castiglioni (29.51)Elena Di Liddo (25.17)Silvia Di Pietro (23.88) 1:45.48 Q 4 1 2 Peng Xuwei (27.21)Tang Qianting (29.10)Yu Yiting (25.65)Cheng Yujie (23.61) 1:45.57 Q 5 1 4 Hanna Rosvall (26.82)Emelie Fast (29.71)Louise Hansson (25.28)Michelle Coleman (23.82) 1:45.63 Q 6 2 4 Russian Swimming Federation Maria Kameneva (26.55)Evgeniia Chikunova (30.28)Arina Surkova (24.83)Rozaliya Nasretdinova (24.10) 1:45.76 Q 7 1 5 Tessa Giele (26.69)Kim Busch (30.64)Ranomi Kromowidjojo (24.67)Maaike de Waard (24.06) 1:46.06 Q 8 2 1 Anastasiya Shkurdai (26.55)Alina Zmushka (30.04)Anastasiya Kuliashova (25.62)Nastassia Karakouskaya (24.47) 1:46.68 Q 9 2 3 Marie-Ambre Moluh (27.44)Justine Delmas (30.95)Béryl Gastaldello (25.38)Analia Pigrée (24.72) 1:48.49 10 1 6 Nina Kost (27.89)Lisa Mamié (30.74)Alexandra Touretski (26.19)Maria Ugolkova (24.29) 1:49.11 NR 11 1 7 Stephanie Au (27.47)Lam Hoi Kiu (31.34)Chan Kin Lok (26.56)Sze Hang-yu (24.75) 1:50.12 12 2 6 Tamara Potocká (28.15)Andrea Podmaníková (30.33)Zora Ripková (26.53)Lillian Slušná (25.32) 1:50.33 13 2 2 Jinjutha Pholjamjumrus (29.19)Phiangkhwan Pawapotako (32.45)Jenjira Srisaard (26.01)Kornkarnjana Sapianchai (26.31) 1:53.96 1 3 DNS

Final The final was held at 18:00.Final results Rank Lane Nation Swimmers Time Notes 2 Louise Hansson (25.91 NR)Sophie Hansson (29.07)Sarah Sjöström (23.96)Michelle Coleman (23.44) 1:42.38 = 4 Rhyan White (26.33)Lydia Jacoby (29.62)Claire Curzan (24.56)Abbey Weitzeil (23.10) 1:43.61 1 Kira Toussaint (26.08)Kim Busch (30.59)Maaike de Waard (24.51)Ranomi Kromowidjojo (22.85) 1:44.03 4 5 Kylie Masse (25.92)Sydney Pickrem (29.89)Maggie Mac Neil (24.85)Kayla Sanchez (23.50) 1:44.16 NR 5 6 Wan Letian (26.41)Tang Qianting (28.96)Yu Yiting (25.28)Cheng Yujie (23.78) 1:44.43 6 7 Russian Swimming Federation Maria Kameneva (26.32)Nika Godun (29.56)Arina Surkova (24.63)Rozaliya Nasretdinova (24.00) 1:44.51 7 3 Elena Di Liddo (26.81)Arianna Castiglioni (29.34)Silvia Di Pietro (24.93)Costanza Cocconcelli (24.12) 1:45.20 8 8 Anastasiya Shkurdai (26.54)Alina Zmushka (29.72)Anastasiya Kuliashova (25.86)Nastassia Karakouskaya (24.27) 1:46.39

References