2018 African Swimming Championships – Men's 400 metre freestyle
# 2018 African Swimming Championships – Men's 400 metre freestyle

The Men's 400 metre freestyle competition of the 2018 African Swimming Championships was held on 13 September 2018.

## Records

Prior to the competition, the existing world and championship records were as follows.

| | Name | Nation | Time | Location | Date |
| - | - | - | - | - | - |
| World record | Paul Biedermann | Germany | 3:40.07 | Rome | 26 July 2009 |
| African record | Oussama Mellouli | Tunisia | 3:41.11 | Rome | 26 July 2009 |
| Championship record | Jay-Cee Thomson | South Africa | 3:53.12 | Casablanca | 16 September 2010 |

The following new records were set during this competition.

| Date | Event | Name | Nationality | Time | Record |
| - | - | - | - | - | - |
| 13 September | Final | Marwan Elkamash | Egypt | 3:51.12 | CR |

## Results

### Heats

The heats were started on 13 September at 09:40.

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| 1 | Marwan Elkamash | Egypt | 4:01.31 | Q |
| 2 | Ruan Breytenbach | South Africa | 4:02.71 | Q |
| 3 | Lounis Khendriche | Algeria | 4:02.83 | Q |
| 4 | Mohamed Aziz Ghaffari | Tunisia | 4:03.46 | Q |
| 5 | Mohamed Djaballah | Algeria | 4:03.51 | Q |
| 6 | Marwan El-Amrawy | Egypt | 4:06.59 | Q |
| 7 | Mohamed Agili | Tunisia | 4:06.77 | Q |
| 8 | Righardt Muller | South Africa | 4:11.64 | Q |
| 9 | Mathieu Marquet | Mauritius | 4:14.12 | |
| 10 | Amadou Ndiaye | Senegal | 4:15.97 | |
| 11 | Dean Hoffman | Seychelles | 4:21.38 | |
| 12 | Ovesh Purahoo | Mauritius | 4:45.72 | |
| 13 | Zinhle Bekker | Botswana | 4:53.56 | |

### Final

The final was started on 10 September.

| Rank | Lane | Name | Nationality | Time | Notes |
| - | - | - | - | - | - |
| | 4 | Marwan Elkamash | Egypt | 3:51.12 | CR |
| | 7 | Marwan El-Amrawy | Egypt | 3:55.52 | |
| | 6 | Mohamed Aziz Ghaffari | Tunisia | 3:56.68 | |
| 4 | 3 | Lounis Khendriche | Algeria | 3:56.95 | |
| 5 | 1 | Mohamed Agili | Tunisia | 3:57.89 | |
| 6 | 2 | Mohamed Djaballah | Algeria | 3:58.67 | |
| 7 | 5 | Ruan Breytenbach | South Africa | 4:00.42 | |
| 8 | 8 | Righardt Muller | South Africa | 4:09.79 | |
