| 498 | Ronetta Smith |  | 51.23 | | May 22, 2005 | Carson, CA (USA) |
| 498 | Lucimar Teodoro |  | 51.23 | | Jun 17, 2005 | São Paulo (BRA) |
| 498 | Oksana Shcherbak |  | 51.23 | | Jul 22, 2006 | Kyiv (UKR) |
| 498 | Sydney Sutton |  | 51.23 | | Jun 21, 2025 | Franklin Field, Philadelphia, PA (USA) |
| 498 | Marlena Wesh |  | 51.23 | | Jul 7, 2012 | Irapuato (MEX) |
| 498 | Andrenette Knight | | 51.23 | | Jun 29, 2024 | National Stadium, Kingston (JAM) |
| 498 | Barbora Malíková |  | 51.23 | | Jun 27, 2021 | Stadion Mládeže, Zlín (CZE) |
| 498 | Emily Diamond |  | 51.23 | | Jun 4, 2016 | Regensburg (GER) |
| 509 | Tjipekapora Herunga |  | 51.24 | | May 4, 2012 | Pretoria (RSA) |
| 509 | Jutta Mörig |  | 51.24 | | May 29, 1976 | Karl Marx Stadt (GDR) |
| 509 | Margaret Etim |  | 51.24 | | May 22, 2010 | Makurdi (NGR) |
| 509 | Imaobong Nse Uko | | 51.24 | | May 15, 2022 | Terry & Linda Fuller T&F Complex, Lubbock, TX (USA) |
| 509 | Delecia Mcduffie | | 51.24 | | Jun 9, 2022 | Hayward Field, Eugene, OR (USA) |
| 509 | Angelika Kahl | | 51.24 | | Sep 4, 1974 | Stadio Olimpico, Roma (ITA) |
| 515 | Dianne Francis-Dunrod |  | 51.25 | | Jun 2, 1990 | Durham, NC (USA) |
| 515 | Shanta Ghosh | | 51.25 | | Jun 30, 2001 | Stuttgart (GER) |
| 515 | Gabriela Eilzabeth Medina |  | 51.25 | | May 5, 2007 | Xalapa (MEX) |
| 515 | Sherone Simpson | | 51.25 | | Mar 22, 2008 | Kingston (JAM) |
| 515 | Morgan Mitchell |  | 51.25 | | Jun 5, 2016 | Alexander Stadium, Birmingham (GBR) |
| 515 | Tereza Petržilková | | 51.25 | | Jul 30, 2023 | Stadion Míru, Tábor (CZE) |
| 521 | Yekaterina Bikert |  | 51.26 | | Jun 5, 2004 | Tula (RUS) |
| 521 | Seren Bundy-Davies | | 51.26 | | Jun 11, 2016 | Genève (SUI) |
| 521 | Rickianna Russell | | 51.26 | | Mar 30, 2023 | National Stadium, Kingston (JAM) |
| 521 | Chioma Nwachukwu | | 51.26 | | Apr 19, 2025 | Percy Beard Track, Gainesville, FL (USA) |
| 521 | Lyudmila Koshchey | | 51.26 | | May 18, 1996 | Kyiv (UKR) |
| 526 | Zuzana Hejnová | | 51.27 | | - | - |
| 526 | Beatriz Castillo |  | 51.27 | | Jul 16, 1978 | Medellín (COL) |
| 526 | Justine Palframan |  | 51.27 | | Jul 10, 2015 | Main Stadium, Gwangju (KOR) |
| 526 | Lyudmila Aksyonova | | 51.27 | | Jun 24, 1976 | Kiev (URS) |
| 526 | Mona-Lisa Pursiainen |  | 51.27 | | Sep 16, 1973 | Helsinki (FIN) |
| 526 | Birgit Uibel | | 51.27 | | Jan 15, 1984 | - |
| 526 | Kathrin Schreiter | | 51.27 | | Aug 30, 1989 | Berlin (GER) |
| 533 | Nova Peris-Kneebone | | 51.28 | | Sep 23, 2000 | Olympic Stadium, Sydney (AUS) |
| 533 | Hanne Claes |  | 51.28 | | Jul 14, 2024 | Stade de La Charrière, La Chaux-de-Fonds (SUI) |
| 533 | Joanne Reid | | 51.28 | | May 29, 2025 | Cushing Stadium, College Station, TX (USA) |
| 533 | Shirley Nekhubui | | 51.28 | | Apr 12, 2025 | National Stadium, Gaborone (BOT) |
| 533 | Yelena Golesheva | | 51.28 | | Jun 21, 1989 | Praha (TCH) |
| 533 | Tania Van Heer | | 51.28 | | Mar 19, 1999 | Melbourne (AUS) |
| 533 | Luna Thiel | | 51.28 | | Sep 4, 2022 | Olympiastadion, Berlin (GER) |
| 533 | Ronda Whyte | | 51.28 | | Apr 17, 2021 | National Stadium, Kingston (JAM) |
| 533 | Omolara Omotosho | | 51.28 | | Jun 23, 2012 | Calabar (NGR) |
| 533 | Natalya Shevtsova | | 51.28 | | Jul 29, 2004 | Tula (RUS) |
| 543 | Anna Pacholak-Guzowska |  | 51.29 | | Jun 24, 2005 | Biala Podlaska (POL) |
| 543 | Grażyna Prokopek | | 51.29 | | Aug 21, 2004 | Olympic Stadium, Athina (GRE) |
| 543 | Stephanie Davis | | 51.29 | | - | - |
| 543 | Felecia Majors | | 51.29 | | May 14, 2016 | Tuscaloosa, AL (USA) |
| 543 | Trish Bartholomew |  | 51.29 | | Jun 14, 2008 | Des Moines, IA (USA) |
| 548 | Maria Laura Almirao | | 51.30 | | Jun 17, 2005 | São Paulo (BRA) |
| 548 | Chitra K. Soman |  | 51.30 | | Jun 16, 2004 | Chennai (IND) |
| 548 | Briana Guillory | | 51.30 | | Jun 23, 2018 | Drake Stadium, Des Moines, IA (USA) |
