| 448 | Kavia Francis |  | 51.15 | | May 15, 2022 | Terry & Linda Fuller T&F Complex, Lubbock, TX (USA) |
| 448 | Blanca Hervas |  | 51.15 | | Jul 19, 2025 | Estadio Vallehermoso, Madrid (ESP) |
| 453 | Olga Tovarnova |  | 51.16 | | Jun 19, 2007 | Tula (RUS) |
| 453 | Linsey Mcdonald |  | 51.16 | | Jun 15, 1980 | Moskva (URS) |
| 453 | Linda Kisabaka |  | 51.16 | | Aug 16, 1996 | Köln (GER) |
| 453 | Yekaterina Kulikova | | 51.16 | | Jul 24, 2000 | Tula (RUS) |
| 453 | Ashley Williams | | 51.16 | | Jun 29, 2024 | National Stadium, Kingston (JAM) |
| 458 | Alyona Mamina | | 51.17 | | Jul 9, 2013 | Central Stadium, Kazan (RUS) |
| 458 | Kayla Davis |  | 51.17 | | Jun 16, 2019 | Greensboro, NC (USA) |
| 458 | Syaira Richardson | | 51.17 | | May 11, 2019 | Fayetteville, AR (USA) |
| 458 | Carly Muscaro | | 51.17 | | May 14, 2016 | New Haven, CT (USA) |
| 458 | Norfalia Carabali |  | 51.17 | | Aug 16, 1993 | Gottlieb-Daimler Stadion, Stuttgart (GER) |
| 463 | Melanie Neef | | 51.18 | | Aug 6, 1995 | Ullevi Stadium, Göteborg (SWE) |
| 463 | Małgorzata Hołub-Kowalik |  | 51.18 | | Jul 21, 2018 | Lublin (POL) |
| 463 | Maximila Imali |  | 51.18 | | Jun 10, 2017 | Nairobi (KEN) |
| 463 | Aleksandra Fedoriva-Spayer | | 51.18 | | - | - |
| 463 | Daniela Reina |  | 51.18 | | Aug 27, 2006 | Rieti (ITA) |
| 463 | Andrea Anderson | | 51.18 | | Jul 15, 2000 | Sacramento, CA (USA) |
| 463 | Hana Benešová |  | 51.18 | | Jun 10, 1997 | Praha (CZE) |
| 463 | Merlene Frazer | | 51.18 | | Jul 28, 1996 | Olympic Stadium, Atlanta, GA (USA) |
| 471 | Irina Olkhovnikova | | 51.19 | | Aug 14, 1982 | Kiev (URS) |
| 471 | Maygan Shaw | | 51.19 | | Apr 26, 2025 | LSU Bernie Moore Stadium, Baton Rouge, LA (USA) |
| 471 | Alina Lohvynenko |  | 51.19 | | Jun 12, 2012 | Yalta (UKR) |
| 471 | Nawal El Jack |  | 51.19 | | Jul 15, 2005 | Sidi Youssef Ben Ali, Marrakech (MAR) |
| 471 | Nadezhda Ilyina | | 51.19 | | May 29, 1976 | München (GER) |
| 476 | Joy Eze |  | 51.20 | | Jul 20, 2007 | Algiers (ALG) |
| 476 | Leslie Cole | | 51.20 | | Jun 13, 2009 | Fayetteville, AR (USA) |
| 476 | Hanna Mikhailava |  | 51.20 | | Aug 1, 2024 | Regional Sport Complex, Brest (BLR) |
| 479 | Lauren Lewis | | 51.21 | | Jul 9, 2023 | Hayward Field, Eugene, OR (USA) |
| 479 | Tiana Wilson | | 51.21 | | May 1, 2021 | LSU Bernie Moore Stadium, Baton Rouge, LA (USA) |
| 479 | Delisa Walton-Floyd | | 51.21 | | May 3, 1987 | Houston, TX (USA) |
| 479 | Kim Matthews Beenamol |  | 51.21 | | Jun 18, 2000 | Kyiv (UKR) |
| 479 | Francine Landre |  | 51.21 | | Jun 23, 2001 | Weserstadion, Bremen (GER) |
| 479 | Anastasiya Kochetova | | 51.21 | | Jul 16, 2006 | Tula (RUS) |
| 479 | Bendere Oboya |  | 51.21 | | Sep 30, 2019 | Khalifa International Stadium, Doha (QAT) |
| 479 | Anna Ryzhykova | | 51.21 | | Jun 19, 2021 | Avangard Stadium, Lutsk (UKR) |
| 479 | Aiyanna Stiverne |  | 51.21 | | Jun 25, 2022 | McLeod Stadium, Langley (CAN) |
| 479 | Latasha Smith | | 51.21 | | May 14, 2023 | University of South Florida Track & Field Stadium, Tampa, FL (USA) |
| 489 | Zoey Clark | | 51.22 | | Jun 11, 2022 | Centre sportif Bout-du-Monde, Genève (SUI) |
| 489 | Veronika Drljačić |  | 51.22 | | Jul 26, 2025 | Panthessaliko Stadium, Volos (GRE) |
| 489 | Shiann Salmon | | 51.22 | | Jul 8, 2023 | National Stadium, Kingston (JAM) |
| 489 | Lanae-Tava Thomas | | 51.22 | | Apr 15, 2023 | Percy Beard Track, Gainesville, FL (USA) |
| 489 | Alina Luchshava | | 51.22 | | Aug 17, 2022 | Dinamo National Olympic Stadium, Minsk (BLR) |
| 489 | Anita Horvat |  | 51.22 | | Jul 20, 2018 | Stade Louis II, Monaco (MON) |
| 489 | Kiana Horton | | 51.22 | | May 13, 2018 | Waco, TX (USA) |
| 489 | Yinka Ajayi | | 51.22 | | Mar 17, 2018 | Abuja (NGR) |
| 489 | Hengyun Zhang |  | 51.22 | | Oct 18, 1997 | Shanghai (CHN) |
| 498 | Kineke Alexander |  | 51.23 | | - | - |
| 498 | Deborah Sapenter | | 51.23 | | Jul 26, 1976 | Olympic Stadium, Montréal (CAN) |
| 498 | Barbara Krug | | 51.23 | | Aug 7, 1977 | Dresden (GER) |
