2018 African Swimming Championships – Men's 800 metre freestyle
# 2018 African Swimming Championships – Men's 800 metre freestyle

The Men's 800 metre freestyle competition of the 2018 African Swimming Championships was held on 11 September 2018.

## Records

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

| | Name | Nation | Time | Location | Date |
| - | - | - | - | - | - |
| World record | Zhang Lin | China | 7:32.12 | Rome | 29 July 2009 |
| African record | Oussama Mellouli | Tunisia | 7:35.27 | Rome | 29 July 2009 |
| Championship record | Troyden Prinsloo | South Africa | 8:03.34 | Casablanca | 4 May 2004 |

The following new records were set during this competition.

| Date | Event | Name | Nationality | Time | Record |
| - | - | - | - | - | - |
| 11 September | Final | Marwan Elkamash | Egypt | 8:02.37 | CR |

## Results

### Final ranking

The races were started on 11 September at 11:45.

| Rank | Name | Nationality | Time | Notes |
| - | - | - | - | - |
| | Marwan Elkamash | Egypt | 8:02.37 | CR |
| | Marwan El-Amrawy | Egypt | 8:07.42 | |
| | Ahmed Hafnaoui | Tunisia | 8:08.74 | |
| 4 | Mohamed Djaballah | Algeria | 8:16.18 | |
| 5 | Ruan Breytenbach | South Africa | 8:16.53 | |
| 6 | Lounis Khendriche | Algeria | 8:17.05 | |
| 7 | Mohamed Agili | Tunisia | 8:18.06 | |
| 8 | Righardt Muller | South Africa | 8:37.65 | |
| 9 | Amadou Ndiaye | Senegal | 9:08.57 | |
| | Ovesh Purahoo | Mauritius | Did not start | |
