Frederick James H. Foster (born December 1995) is an English first-class cricketer.
Foster was born in Westminster and educated at Eltham College and Durham University. From Durham he progressed to study for a PhD in chemistry at St Cross College, Oxford. While studying at Oxford, he made a single appearance for Oxford University against Cambridge University in The University Matches of 2019 at Fenner's. Foster took three wickets in the match with his slow left-arm orthodox bowling, taking the wickets of Nathan Johns in the Cambridge first innings, in addition to Nick Taylor and Edward Hyde in their second-innings, finishing with match figures of 3 for 80. He batted once in the Oxford innings, scoring a single run before being run out by James Vitali.