John Kenneth Constantine Holt, known as J. K. Holt junior, (12 August 1923 – 3 June 1997) was a West Indian international cricketer who played in 17 Test matches between 1954 and 1959. Holt played for Jamaica from 1946 to 1961-62. He toured India, Pakistan and Ceylon with the Commonwealth XI in 1949-50, making 838 runs at 39.90, and scoring 162 in the match against Pakistan. He spent the English summers of 1950 and 1951 playing for Haslingden in the Lancashire League. His highest first-class score was 172 for Jamaica against British Guiana in 1947-48.