Denys Wilcox (4 June 1910 – 6 February 1953) was an English cricketer and schoolmaster.

Wilcox scored more than 1000 runs in his last season at Dulwich College, then went up to Cambridge University.

[1] He played as an amateur, spending most of his time on his duties as headmaster of Alleyn Court Prep School in Westcliff-on-Sea, which his father had founded in 1904.

[2] He was a considerable influence on the early career of Trevor Bailey, a pupil at Alleyn Court who also played for Dulwich School, Cambridge and Essex.

[1] Wilcox's son John, who also played for Essex, also later became headmaster of Alleyn Court.