Frank Kenneis Thornton (28 October 1898 – 8 September 1987) was an English cricketer.
Thornton made two first-class appearances for Northamptonshire in the 1937 County Championship against Essex and Lancashire.
[1] In the match against Essex at the Town Ground, Peterborough, Thornton scored 13 runs in Northamptonshire's first-innings, before being dismissed by Stan Nichols, while in their second-innings he was dismissed by the same bowler for 9 runs.
[2] In the match against Lancashire at the County Ground, Northampton, he scored a single run in Northamptonshire first-innings, before being dismissed by Dick Pollard, while in their second-innings he ended not out on 4.
His brother John was also a first-class cricketer.