Mr. Devil or Mr Devil could refer to:
Ken Daneyko (born 1964), Ukrainian-Canadian hockey player nicknamed "Mr. Devil" Mr. Devil, the nickname for A. O. Neville in the 2002 Australian drama film Rabbit-Proof Fence Mr. Devil, a mountain wolf in the fictional African country of Bangalla in The Phantom "Mr Devil", a song on the 2008 album The Majority
See also Devil, in several religions Señor Diablo, a character in Johnny the Homicidal Maniac