Denis William Arthur Vann (21 November 1916 – 20 January 1961) was an English cricketer.
Vann was a right-handed batsman whose bowling style is unknown.
Vann made his first-class debut for Northamptonshire against Warwickshire in the 1936 County Championship.
He made three further first-class appearances for the county the following season against Nottinghamshire, Cambridge University and Worcestershire.
[2] With the ball, he took 2 wickets at a bowling average of 52.00, with best figures of 2/26.