The Men's 50 Freestyle at the 10th FINA World Swimming Championships (25m) 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 (WR) and Championship records (CR) were as follows. The following records were established during the competition: