The men's 400 metres event at the 2011 All-Africa Games was held on 11–13 September.
Medalists edit
| Gold | Silver | Bronze |
Rabah Yousif Sudan
|
Tobi Ogunmola Nigeria
|
Mark Mutai Kenya
|
Results edit
Heats edit
Qualification: First 3 of each heat (Q) and the next 6 fastest (q) qualified for the semifinals.
| Rank | Heat | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 4 | Rabah Yousif | Sudan |
45.67 | Q |
| 2 | 4 | Tobi Ogunmola | Nigeria |
46.11 | Q |
| 3 | 4 | Isaac Makwala |  Botswana |
46.43 | Q |
| 4 | 1 | Anderson Mureta Mutegi | Kenya |
46.46 | Q |
| 5 | 3 | Mark Mutai | Kenya |
46.48 | Q |
| 6 | 2 | Sakarea Kamberuka | Botswana |
46.66 | Q |
| 7 | 1 | Pako Seribe | Botswana |
46.70 | Q |
| 8 | 3 | Bereket Desta |  Ethiopia |
46.74 | Q |
| 9 | 3 | James Godday | Nigeria |
47.00 | Q |
| 10 | 2 | Saviour Kombe |  Zambia |
47.24 | Q |
| 11 | 4 | Vincent Mumo | Kenya |
47.68 | q |
| 12 | 2 | Mathieu Gnanligo |  Benin |
47.71 | Q |
| 13 | 1 | Segun Ogunkole | Nigeria |
47.81 | Q |
| 14 | 3 | Ali Ngaimoko |  Uganda |
48.02 | q |
| 15 | 1 | Hagos Tadesse | Ethiopia |
48.07 | q |
| 16 | 2 | Nelton Ndebele |  Zimbabwe |
48.20 | q |
| 17 | 3 | Mancoba Nyoni |  Swaziland |
48.51 | |
| 18 | 4 | Mohamed Khouaja |  Libya |
48.66 | |
| 19 | 3 | Connias Mudzingwa | Zimbabwe |
48.89 | |
| 20 | 1 | N'Dri Sosthene Kouadio |  Ivory Coast |
48.95 | |
| 21 | 2 | Gary Kikaya |  Democratic Republic of the Congo |
49.23 | |
| 22 | 1 | Salvador Chitsondzo |  Mozambique |
49.39 | |
| 23 | 2 | Jean Kamyamgara |  Rwanda |
49.92 | |
| 24 | 1 | David Tinago | Zimbabwe |
50.21 | |
| 25 | 4 | Houssein Nou Ali |  Djibouti |
50.94 | |
| 26 | 4 | Gustave Dadabo |  Republic of the Congo |
51.12 |
Semifinals edit
Qualification: First 3 of each semifinal (Q) and the next 2 fastest (q) qualified for the final.
| Rank | Heat | Name | Nationality | Time | Notes |
|---|---|---|---|---|---|
| 1 | 1 | Rabah Yousif | Sudan |
45.86 | Q |
| 2 | 1 | Tobi Ogunmola | Nigeria |
46.11 | Q |
| 3 | 2 | Mark Mutai | Kenya |
46.14 | Q |
| 4 | 2 | James Godday | Nigeria |
46.20 | Q |
| 5 | 1 | Isaac Makwala | Botswana |
46.27 | Q |
| 6 | 2 | Bereket Desta | Ethiopia |
46.39 | Q |
| 7 | 1 | Sakarea Kamberuka | Botswana |
46.59 | q |
| 8 | 2 | Pako Seribe | Botswana |
46.69 | q |
| 9 | 2 | Ali Ngaimoko | Uganda |
47.05 | |
| 10 | 1 | Saviour Kombe | Zambia |
47.33 | |
| 11 | 1 | Vincent Mumo | Kenya |
47.51 | |
| 12 | 2 | Anderson Mureta Mutegi | Kenya |
47.77 | |
| 13 | 1 | Segun Ogunkole | Nigeria |
47.83 | |
| 14 | 1 | Nelton Ndebele | Zimbabwe |
48.37 | |
| 15 | 2 | Hagos Tadesse | Ethiopia |
48.78 | |
| 2 | Mathieu Gnanligo | Benin |
DNF |
Final edit
| Rank | Name | Nationality | Time | Notes |
|---|---|---|---|---|
 |
Idrissa Adam |  Cameroon |
45.27 | |
 |
Tobi Ogunmola | Nigeria |
45.82 | |
 |
Mark Mutai | Kenya |
46.52 | |
| 4 | Bereket Desta | Ethiopia |
46.56 | |
| 5 | James Godday | Nigeria |
46.58 | |
| 6 | Sakarea Kamberuka | Botswana |
46.60 | |
| 7 | Isaac Makwala | Botswana |
46.78 | |
| 8 | Pako Seribe | Botswana |
46.88 |