John Frederick Crapp (14 October 1912 – 13 February 1981), was an English cricketer, who played first-class cricket for Gloucestershire between 1936 and 1956, and played for England on tour in the winter of 1948–49. Cricket writer, Colin Bateman, noted that Crapp was a "sound rather than spectacular batsman who scored 1,000 runs in all but one of his fifteen seasons – that was 1954, when he struggled with the Gloucestershire captaincy". Crapp went on to become an umpire for twenty two seasons, including standing in four Test matches.