The men's 20 kilometre walk at the 2012 African Championships in Athletics was held at the Stade Charles de Gaulle on 29 June.
| Gold | Hédi Teraoui | |
| Silver | David Kimutai | |
| Bronze | Mohamed Ameur |
| Standing records prior to the 2012 African Championships in Athletics | |||||
|---|---|---|---|---|---|
| World record | 1:17:16 | Saransk, Russia | 29 September 2007 | ||
| African record | 1:19:02 | Eisenhüttenstadt, Germany | 10 May 1997 | ||
| Championship record | 1:20:36 | Nairobi, Kenya | 1 August 2010 | ||
| Rank | Name | Nationality | Time | Note | |
|---|---|---|---|---|---|
| DNF | |||||
| DNF | |||||
| DNF | |||||
| DNS |