| 250 | Oksana Yelyasova-Gulumyan |  | 55.16 | | Jul 11, 2005 | Tula (RUS) |
| 252 | Latosha Wallace |  | 55.18 | | May 6, 2012 | Belém (BRA) |
| 253 | Mary Wagner |  | 55.19 | | May 21, 1983 | Fürth (GER) |
| 254 | Lesley Maxie | | 55.20 | | Jun 9, 1984 | San José (USA) |
| 254 | Elodie Ouédraogo |  | 55.20 | | Aug 6, 2012 | Olympic Stadium, London (GBR) |
| 254 | Anastasiya Trifonova | | 55.20 | | Jul 15, 2006 | Tula (RUS) |
| 257 | Weimin Zhang |  | 55.21 | | May 20, 1992 | Nanjing (CHN) |
| 257 | Marina Zafirova | | 55.21 | | Jul 31, 2007 | Tula (RUS) |
| 257 | Sanaa Hebron | | 55.21 | | May 17, 2025 | Kentner Stadium Wake Forest University, Winston Salem, NC (USA) |
| 257 | Shae Anderson | | 55.21 | | May 16, 2021 | Katherine B. Loker Stadium, Los Angeles, CA (USA) |
| 261 | Vera Barbosa |  | 55.22 | | Aug 5, 2012 | Olympic Stadium, London (GBR) |
| 261 | Jasmine Hyder | | 55.22 | | Jun 25, 2011 | Hayward Field, Eugene, OR (USA) |
| 261 | Tsvetelina Kirilova |  | 55.22 | | Aug 17, 2008 | National Stadium, Beijing (CHN) |
| 261 | Keri Maddox |  | 55.22 | | Aug 12, 2000 | Birmingham (GBR) |
| 265 | Cristina Pérez |  | 55.23 | | Sep 26, 1988 | Olympic Stadium, Seoul (KOR) |
| 265 | Stephanie Kampf | | 55.23 | | May 29, 2004 | Zeulenroda (GER) |
| 267 | Sinead Dudgeon | | 55.24 | | Jul 24, 1999 | Birmingham (GBR) |
| 267 | Aurore Kassambara |  | 55.24 | | Jul 29, 2008 | Stade Louis II, Monaco (MON) |
| 267 | Rosa Jolivet-Outing | | 55.24 | | Jun 5, 1998 | Buffalo, NY (USA) |
| 270 | Grace Claxton |  | 55.25 | | Jun 18, 2022 | Estadio Vallehermoso, Madrid (ESP) |
| 270 | Lee Mcconnell | | 55.25 | | Mar 23, 2006 | Melbourne (AUS) |
| 272 | Yelena Mitrukova | | 55.26 | | Jul 18, 1987 | Bryansk (URS) |
| 273 | Hayat Lambarki |  | 55.27 | | Jun 27, 2013 | Mersin (TUR) |
| 273 | Cora Daniela Olivero | | 55.27 | | Jun 29, 2005 | Almería (ESP) |
| 275 | Alexis Franklin | | 55.28 | | May 27, 2016 | Jacksonville, FL (USA) |
| 275 | Maren Schott | | 55.28 | | Aug 30, 2003 | Daegu (KOR) |
| 275 | Moa Granat |  | 55.28 | | Jul 3, 2025 | Sola Arena, Karlstad (SWE) |
| 275 | Natalya Ignatyuk | | 55.28 | | Jul 12, 1991 | Kiev (URS) |
| 275 | Béatrice Plüss |  | 55.28 | | Jun 3, 1986 | Lidingö (SWE) |
| 280 | Kathy Freeman | | 55.29 | | Jul 12, 1990 | Stade Olympique de la Pontaise, Lausanne (SUI) |
| 281 | Thi Lan Quach |  | 55.30 | | Aug 27, 2018 | Jakarta (INA) |
| 281 | Gretha Tromp |  | 55.30 | | Jul 24, 1991 | Sheffield (GBR) |
| 283 | Abbey Glynn | | 55.31 | | May 12, 2024 | Potts Field, Boulder, CO (USA) |
| 284 | Kristiina Halonen |  | 55.32 | | May 31, 2025 | Ulinzi Sports Complex, Langata, Nairobi (KEN) |
| 284 | Nicola Sanders | | 55.32 | | Mar 23, 2006 | Melbourne (AUS) |
| 286 | Angela Wright-Scott | | 55.33 | | Jun 21, 1984 | Los Angeles, CA (USA) |
| 287 | Satomi Kubokura |  | 55.34 | | Jun 26, 2011 | Osaka (JPN) |
| 288 | Sára Mátó |  | 55.35 | | Jun 10, 2024 | Stadio Olimpico, Roma (ITA) |
| 288 | Miriam Barnes | | 55.35 | | Jun 28, 2008 | Eugene, OR (USA) |
| 288 | Nelli Voronkova |  | 55.35 | | May 11, 1996 | Gomel (BLR) |
| 291 | Frida Johansson-Svensson | | 55.36 | | Aug 27, 1991 | National Stadium, Tokyo (JPN) |
| 291 | Vanessa Baldé | | 55.36 | | Jul 19, 2025 | Fana Stadion, Bergen (NOR) |
| 293 | Bianca Stubler | | 55.37 | | Jul 12, 2025 | Billy J. Murphy Track and Field Complex, Memphis, TN (USA) |
| 293 | Lauren Poetschka |  | 55.37 | | Mar 2, 2000 | Melbourne (AUS) |
| 295 | Deonca Bookman | | 55.38 | | Jun 2, 2024 | Alumni Field, Windsor (CAN) |
| 295 | Linetta Wilson | | 55.38 | | Jun 2, 1989 | Provo, UT (USA) |
| 297 | Tyra Wilson | | 55.39 | | Apr 26, 2025 | LSU Bernie Moore Stadium, Baton Rouge, LA (USA) |
| 297 | Shannon Meisberger | | 55.39 | | Jun 25, 2022 | Hayward Field, Eugene, OR (USA) |
| 299 | Sophia Hunter | | 55.40 | | Jun 27, 1987 | San José (USA) |
| 300 | Janeil Bellille |  | 55.41 | | May 30, 2014 | Fayetteville, AR (USA) |
