2010 FINA World Swimming Championships (25 m) – Men's 50 metre freestyle
The Men's 50 Freestyle at the 10th FINA World Swimming Championships was swum 16 - 17 December 2010 in Dubai, United Arab Emirates. Preliminary heats and semifinals of the event were on 16 December; the final on 17 December.
At the start of the event, the existing World and Championship records were as follows.
The following records were established during the competition:
Results
Preliminary heats
* Kishida scratched the semifinals, so Dotto advanced to the semifinals in his place.Semifinals
| Rank | Heat | Lane | Name | Nationality | Time | Notes |
| 1 | 2 | 4 | César Cielo | | 20.61 | Q, CR, AM |
| 2 | 2 | 1 | Marco Orsi | | 21.10 | Q |
| 3 | 2 | 5 | Frédérick Bousquet | | 21.17 | Q |
| 4 | 1 | 8 | Luca Dotto | | 21.25 | Q |
| 5 | 2 | 3 | Steffen Deibler | | 21.25 | Q |
| 6 | 1 | 6 | Alain Bernard | | 21.26 | Q |
| 6 | 2 | 6 | Sergey Fesikov | | 21.26 | Q |
| 8 | 1 | 2 | Kyle Richardson | | 21.29 | ? |
| 8 | 2 | 2 | Josh Schneider | | 21.29 | ? |
| 10 | 1 | 5 | George Bovell | | 21.33 | |
| 11 | 1 | 4 | Nathan Adrian | | 21.35 | |
| 12 | 1 | 3 | Stefan Nystrand | | 21.37 | |
| 13 | 2 | 8 | Nicholas Santos | | 21.43 | |
| 14 | 2 | 7 | Matthew Abood | | 21.48 | |
| 15 | 1 | 1 | Roland Mark Schoeman | | 21.57 | |
| 16 | 1 | 7 | Andrii Govorov | | 21.78 | |
Swim-off
Final
