Walter Daniel John Tull (28 April 1888 – 25 March 1918) was an English professional footballer and British Army officer of Afro-Caribbean descent. He played as an inside forward and half back for Clapton, Tottenham Hotspur and Northampton Town and was the third person of mixed heritage to play in the top division of the Football League after Arthur Wharton and Willie Clarke. He was also the first black player to be signed for Rangers in 1917 while stationed in Scotland.