The 1939 World Snooker Championship was a snooker tournament held at Thurston's Hall in London, England from 23 January to 4 March 1939. It was the thirteenth edition of the World Snooker Championship. Joe Davis retained the championship title that he had held since 1927. In the best-of-73- final against Sidney Smith, Davis won the match 43-30, securing the victory at 37-25 earlier in the match. Fred Davis set a new championship highest by compiling a 113 in the 22nd frame of his 14–17 semi-final defeat by his brother Joe Davis.