The Women's 50 metre butterfly competition of the 2021 FINA World Swimming Championships (25 m) was held on 19 and 20 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 19 December Final Ranomi Kromowidjojo 24.44 CR

Results Heats The heats were started on 18 December at 09:43.Heats results

Rank Heat Lane Name Nationality Time Notes 1 7 4 Sarah Sjöström 24.92 Q 2 6 4 Ranomi Kromowidjojo 24.97 Q 3 5 5 Maaike de Waard 25.12 Q 4 6 1 Claire Curzan 25.17 Q 5 6 7 Zhang Yufei 25.20 Q 6 6 5 Arina Surkova Russian Swimming Federation 25.33 Q 7 7 7 Torri Huske 25.43 Q 8 7 2 Farida Osman 25.60 Q 9 7 3 Silvia Di Pietro 25.64 Q 10 5 6 Elena Di Liddo 25.67 Q 10 7 5 Holly Barratt 25.67 Q 12 7 1 Sara Junevik 25.69 Q 13 7 6 Emilie Beckmann 25.75 Q 14 5 2 Julie Kepp Jensen 25.76 Q 15 6 3 Anna Ntountounaki 25.81 Q 16 6 6 Marie Wattel 25.82 Q 17 5 9 Jenjira Srisaard 26.19 18 6 2 Jeong So-eun 26.22 18 7 9 Giovanna Diamante 26.22 20 5 1 Anastasiya Kuliashova 26.26 21 5 7 Rozaliya Nasretdinova Russian Swimming Federation 26.28 22 5 8 Ellen Walshe 26.33 23 6 8 Lana Pudar 26.37 24 5 0 Jana Pavalić 26.47 25 7 0 Tayla Lovemore 26.78 26 6 9 Alexandra Touretski 26.87 27 4 5 Chan Kin Lok 26.99 28 4 1 Nikol Merizaj 27.03 NR 29 4 7 Mariam Sheikhalizadeh 27.32 NR 30 4 4 Gabriela Ņikitina 27.45 31 4 3 Lillian Slušná 27.49 32 1 3 María José Ribera 27.55 33 4 2 Jasmine Alkhaldi 27.56 34 3 4 Elisabeth Timmer 27.58 NR 35 4 0 Oumy Diop 27.66 NR 36 4 9 María Schutzmeier 27.80 37 4 8 Zaneta Alvaranga 27.93 38 3 3 Samantha Roberts 28.36 NR 39 3 2 Varsenik Manucharyan 28.79 40 3 5 Cherelle Thompson 28.97 41 3 7 Antsa Rabejaona 29.13 42 3 6 Mikaili Charlemagne 29.16 43 2 4 Khuyagbaataryn Enkhzul 29.34 44 3 8 Nubia Adjei 29.63 45 2 5 Avice Meya 29.90 46 1 7 Mst Sonia Khatun 30.13 47 2 6 Khema Elizabeth 30.30 48 2 3 Dirngulbai Misech 30.60 49 3 0 Ayah Binrajab 30.65 50 2 9 Muynin Kaing 30.77 NR 50 3 9 Denise Donelli 30.77 52 2 1 Taffi Illis 31.99 53 1 4 Daniella Nafal 32.07 54 1 5 Kayla Hepler 32.46 55 1 6 Sophie Beth Taylor 32.78 56 2 2 Jessica Makwenda 34.07 57 2 7 Tity Dumbuya 34.79 58 2 8 Rahel Gebresilassie 36.34 59 2 0 Alia Ishimwe 37.62 60 1 2 Grace Nguelo'o 38.37 3 1 Timipame-ere Akiayefa 4 6 Marina Chan 5 3 Maggie Mac Neil 5 4 Béryl Gastaldello 6 0 Barbora Seemanová 7 8 Kylie Masse

Semifinals The semifinals were started on 18 December at 18:46.Semifinals results Rank Heat Lane Name Nationality Time Notes 1 1 4 Ranomi Kromowidjojo 24.61 Q 2 2 4 Sarah Sjöström 24.94 Q 3 2 3 Zhang Yufei 24.97 Q, NR 4 2 5 Maaike de Waard 25.19 Q 5 1 3 Arina Surkova Russian Swimming Federation 25.20 Q 5 1 5 Claire Curzan 25.20 Q 5 2 6 Torri Huske 25.20 Q 8 2 2 Silvia Di Pietro 25.25 Q 9 1 1 Julie Kepp Jensen 25.31 10 2 8 Anna Ntountounaki 25.36 11 1 6 Farida Osman 25.49 11 2 1 Emilie Beckmann 25.49 13 1 2 Elena Di Liddo 25.54 14 2 7 Holly Barratt 25.63 15 1 7 Sara Junevik 25.68 16 1 8 Marie Wattel 25.81

Final The final was held on 19 December at 18:06.Final results

Rank Lane Name Nationality Time Notes 4 Ranomi Kromowidjojo 24.44 CR, NR 5 Sarah Sjöström 24.51 7 Claire Curzan 24.55 AM, WJ 4 1 Torri Huske 24.88 5 3 Zhang Yufei 24.91 NR 6 6 Maaike de Waard 25.12 7 8 Silvia Di Pietro 25.26 8 2 Arina Surkova Russian Swimming Federation 25.29

References