The Men's 50 Backstroke at the 10th FINA World Swimming Championships (25m) was swum 17 – 18 December 2010 in Dubai, United Arab Emirates. In the morning session of 17 December, 76 individuals swam in the Preliminary heats, with the top-16 swimmers advancing to swim again in the Semifinals that evening. The top-8 finishers in the Semifinals then advanced to the Final the next evening.