David Watkin John Thomas (6 July 1917 – 30 March 1991) was an English footballer who played as a centre forward. He played in the Football League for Plymouth Argyle, Watford and Gillingham, scoring 112 goals in 259 appearances. He also played non-league football for Romford and Sittingbourne. His brother, Bob, played in the Football League for several clubs as an inside forward.