Clayvel Lindsay "Jack" Badcock (10 April 1914 – 13 December 1982) was an Australian cricketer who played in seven Tests from 1936 to 1938.

[6] He scored 167 for a Western Australia Combined XI against the MCC at the start of the 1936–37 season, and played in the First and Second Tests against England.

The series was level two-all, and Australia needed to win to retain The Ashes, as the match was to be played to a finish regardless of time.

[11] Donald Bradman described Badcock as "a lovable and completely unspoiled personality – a great cricketer whose failures in the Tests in England in 1938 detract somewhat from an otherwise splendid record".

[12] The Tasmanian cricket historian Roger Page described him as "short, thick-set, and possessing forearms that Longfellow's blacksmith might have envied ... his usual game was a slow start, risking nothing with length bowling before taking the attack ... his sound defence, ideal temperament, snappy footwork and keen sense of a loose delivery enabled him to crush most bowling".