The Women's 50 Breaststroke at the 10th FINA World Swimming Championships (25m) was swum 15 – 16 December 2010 in Dubai, United Arab Emirates. The heats and semifinals were swum 15 December; the final on 16 December. 64 swimmers swam the race. At the start of the event, the existing World (WR) and Championship records (CR) were: * WR: 28.80, Jessica Hardy, (Berlin, Germany, 15 November 2009) * CR: 29.58, Jessica Hardy, (Manchester 2008)