The women's 20 kilometres walk event at the 2011 All-Africa Games was held on 14 September.
Results edit
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
 |
Chaïma Trabelsi |  Tunisia |
1:40:35 | |
 |
Olfa Lafi | Tunisia |
1:41:25 | |
 |
Aynalem Eshetu |  Ethiopia |
1:42:19 | |
| 4 | Emily Wamusyi Ngii |  Kenya |
1:43:28 | |
| 5 | Asnakech Ararissa | Ethiopia |
1:50:32 | |
| 6 | Grace Thoithi | Kenya |
1:51:32 | |
| 7 | Adanech Mengistu | Ethiopia |
1:53:37 |