Split Personality may refer to:

Mental

• Dissociative identity disorder, previously known as multiple personality disorder, is a dissociative disorder characterized by the presence of at least two personality states.

Music

• Split Personality (Cassidy album), 2004

• Split Personality (All-4-One album), a 2004 album released by the R&B group All-4-One

• Split Personality, a 2006 album by Mila J

• Split Personality (), a 2007 album by Splean

• Split Personalities (album), by 12 Rods, 1998

• "Split Personality", a song by UTFO from the 1986 album Skeezer Pleezer

• "Split Personality", a song by Pink from the 2000 album Can't Take Me Home

• "Split Personality", a song by Skye Sweetnam from the 2004 album Noise from the Basement

Television

Episodes

• "Split Personalities", Stretch Armstrong and the Flex Fighters season 2, episode 6 (2018)

• "Split Personalities", Telenovela episode 9 (2016)

• "Split Personalities", The Spooktacular New Adventures of Casper season 2, episode 4b (1996)

• "Split Personality", Land of the Lost season 2, episode 12 (1975)

• "Split Personality", Phineas and Ferb season 2, episode 61 (2010)

• "Split Personality", Tales from the Crypt season 4, episode 11 (1992)

• "Split Personality", The Love Boat season 4, episode 19b (1981)

• "Split Personality", The Mask: Animated Series season 1, episode 15 (1995)

• "The Split Personality", The Flintstones season 1, episode 5 (1960)

Shows

• Split Personality, a 1959 American game show hosted by Tom Poston

• Split Personality (game show), a 1967 Australian television series

Other uses

• Split Personalities (video game), 1986