Damernas 20 km löpning vid världsmästerskapen i friidrott 2011 ägde rum den 31 augusti.
| Guld | Silver | Brons |
| Olga Kaniskina Ryssland |
Liu Hong Kina |
Anisya Kirdyapkina Ryssland |
| Plats | namn | Medborgarskap | Tid | Anteckningar |
|---|---|---|---|---|
| Olga Kaniskina | Ryssland | 1:29:42 | ||
| Liu Hong | Kina | 1:30:00 | ||
| Anisya Kirdyapkina | Ryssland | 1:30:13 | ||
| fyra | Elisa Rigaudo | Italien | 1:30:44 | SB |
| 5 | Qiyang Shenjie | Kina | 1:31:11 | |
| 6 | Susana Feitor | Portugal | 1:31:26 | |
| 7 | Ana Sabesinha | Portugal | 1:31:36 | |
| åtta | Kristina Saltanovich | Litauen | 1:31:40 | SB |
| 9 | Beatrice Pascual | Spanien | 1:31:46 | |
| tio | Ines Henriquez | Portugal | 1:32:06 | |
| elva | Vera Sokolova | Ryssland | 1:32:13 | |
| 12 | Elena Shumkina | Ukraina | 1:32:17 | SB |
| 13 | Maria Vasco | Spanien | 1:32:42 | |
| fjorton | Ni Gao | Kina | 1:32:49 | |
| femton | Renan Lamblay | Australien | 1:33:38 | |
| 16 | Olivia Logan | Irland | 1:34:02 | |
| 17 | Tatyana Mineeva | Ryssland | 1:34:08 | |
| arton | Anastasia Yatsevich | Belarus | 1:34:09 | |
| 19 | Jami Franco | Guatemala | 1:34:36 | |
| tjugo | Kumi Otoshi | Japan | 1:34:37 | |
| 21 | Claire Tallent | Australien | 1:34:46 | |
| 22 | Mayumi Kawasaki | Japan | 1:35:03 | |
| 23 | Jonna Jackson | Storbritannien | 1:35:32 | |
| 24 | Nadezhda Borovskaya-Prokopchuk | Ukraina | 1:35:38 | |
| 25 | Lucy Pelantova | tjeckiska | 1:35:45 | |
| 26 | Yong-on Zhong | Republiken Korea | 1:35:52 | SB |
| 27 | Claudia Stef | Rumänien | 1:36:55 | |
| 28 | Agnese Pastare | Lettland | 1:37:48 | |
| 29 | Brigita Virbalaite | Litauen | 1:38:39 | |
| trettio | Maria Michta | USA | 1:38:54 | |
| 31 | Maria Chakova | Slovakien | 1:39:07 | |
| 32 | Arabelli Orhuela | Colombia | 1:39:28 | |
| 33 | Ingrid Hernandez | Colombia | 1:39:53 | |
| 34 | Susana Shindlerova | tjeckiska | 1:39:57 | |
| 35 | Marie Polly | Schweiz | 1:40:28 | |
| 36 | Millangela Rosales | Venezuela | 1:40:49 | |
| 37 | Rachel Lavalier Simen | Kanada | 1:43:31 | |
| 38 | Grace Wanjiru Njue | Kenya | 1:43:59 | |
| 39 | Yadira Guaman | Ecuador | 1:45:15 | |
| 40 | Jaima Trabelsi | Tunisien | 1:46:29 | |
| Claudia Balderamma | Bolivia | DSQ | ||
| Maria José Poves | Spanien | DSQ | ||
| Victoria Madaras | Ungern | DSQ | ||
| Neringa Aidityte | Litauen | DSQ | ||
| Maria Guadalupe Sanchez | Mexiko | DSQ | ||
| Olga Yakovenko | Ukraina | DSQ | ||
| Sabina Krantz | Tyskland | DNF | ||
| Melanie Seager | Tyskland | DNF | ||
| Masumi Fuchise | Japan | DNF | ||
| Semikha Mutlu | Kalkon | DNF |
SB är säsongens bästa resultat.