A hangover is an unpleasant physiological effect often following excessive consumption of alcohol.

Hangover or Hungover may also refer to:

• The Hangover (film series), a trilogy of American comedy films
  • The Hangover, a 2009 film
  • The Hangover Part II, a 2011 film
  • The Hangover Part III, a 2013 film
• Hangover (2010 film), an Indian Bengali-language film
• Hangover (2014 film), an Indian Malayalam-language film
• "Hangover" (Sanctuary), an episode of Sanctuary

• The Hangovers (band), a British indie music group formed in 1998
• The Hangovers, an a cappella group formed in 1968, and their eponymous 1970 album

• The Hangover (Funkoars album) (2008)
• The Hangover (Gilby Clarke album) (1997)
• The Hangover (Obie Trice album) (2015)
• Hungover (album), a 2024 album by Ella Langley

• "Hangover" (Taio Cruz song), 2011
• "Hangover" (Starboy Nathan song), 2011
• "Hangover" (Psy song), 2014
• "Hangover", by America from the album Alibi, 1980
• "Hangover", by Betty Boo from the album GRRR! It's Betty Boo, 1992
• "Hangover", by Chris Brown from the album Heartbreak on a Full Moon, 2017
• "Hangover", by Max Webster from the album Max Webster, 1976
• "Hangover", by The Flee-Rekkers, 1961
• "Hangover", by Jason White, 2010
• "Hangover", by Serious Drinking, 1983

• "Hungover", by 3OH!3 from Omens, 2013
• "Hungover", by Cascada from Original Me, 2011
• "Hungover", by Kesha from Animal, 2010
• "Hungover", by Michelle Williams from Unexpected, 2008
• "Hungover", by Shenseea from Alpha, 2022

• The Hangover (Suzanne Valadon), an 1887–1889 painting by Henri de Toulouse-Lautrec

• A phenomenon in which a sports team that wins a championship performs poorly the following season, such as the Super Bowl hangover.

• Hungover You (disambiguation)