Dennis Baddeley (1 May 1921 – May 2006) was an English professional rugby league footballer who played in the 1940s and 1950s. He played at representative level for Yorkshire, and at club level for Glass Houghton Intermediates, Castleford (Heritage № 206), Wakefield Trinity (Heritage № 507) and Featherstone Rovers (Heritage № 209) (World War II guest), as a wing, i.e. number 2 or 5.