| Games: | World Aquatics Championships |
| Nf: | NAM |
| Nfname: | Namibia Swimming Union |
| Year: | 2019 |
| Flagcaption: | Flag of Namibia |
| Location: | Gwangju, South Korea |
| Competitors: | 3 |
| Sports: | 2 |
| Gold: | 0 |
| Silver: | 0 |
| Bronze: | 0 |
| Appearances: | auto |
| App Begin Year: | 1994 |
Namibia competed at the 2019 World Aquatics Championships in Gwangju, South Korea from 12 to 28 July. This was the nation's thirteenth appearance at the FINA World Aquatics Championships since 1994. The Namibia Swimming Union sent three competitors, with Phillip Seidler competing in the open water swimming while Xander Skinner and Ronan Wantenaar competed in the pool.[1]
See main article: Open water swimming at the 2019 World Aquatics Championships. Namibia qualified one male open water swimmer.[2]
See main article: Swimming at the 2019 World Aquatics Championships.
| Athlete | Event | Heat | Semifinal | Final | ||||
|---|---|---|---|---|---|---|---|---|
| Time | Rank | Time | Rank | Time | Rank | |||
| align=left rowspan=2 | Xander Skinner | 50 m freestyle | 23.04 | 51 | did not advance | |||
| 100 m freestyle | 50.44 | 53 | did not advance | |||||
| align=left rowspan=2 | Ronan Wantenaar | 100 m breaststroke | 1:05.17 | 66 | did not advance | |||
| 200 m individual medley | 2:09.02 | 43 | did not advance | |||||