A jester is a type of entertainer employed by the nobility during the Middle Ages and the Renaissance.

Jester may also refer to:

• Jester (Marvel Comics), a supervillain
• Jester (Quality Comics), a superhero
• Jester (Puppet Master)
• Jester, a character in the Oz book series by L. Frank Baum
• Jester Lavorre, a tiefling cleric player character in web series Critical Role
• Jester, a Devil May Cry 3: Dante's Awakening character
• Jester, a Gauntlet Dark Legacy character class

• The Jester (1937 film), a Polish musical comedy
• The Jester (1988 film), a Soviet drama film
• O Bobo, a 1987 Portuguese film with the English-language title The Jester

• Jester Records, a record label
• The Jesters (R&B band), a group from Athens, GA
• The Jesters, an American doo-wop group
• Jesters III, a band from Gaffney, South Carolina
• "The Jester", a song by Sum 41 on the album Underclass Hero
• Jester, a 2017 album by Savant
• Jim Messina and His Jesters, a California-based surf band (See Jim Messina (musician))

• The Jester (novel), by James Patterson
• Jester of Columbia or Jester, a humor magazine
• Simon Jester, in Robert Heinlein's novel The Moon is a Harsh Mistress an alias of the sentient computer Mike

• The Jesters (TV series), an Australian comedy series which aired in 2009 and 2011

• Jester (surname), several people and a fictional character
• Jester Hairston (1901–2000), American composer and actor
• Jester Naefe (1924–1967), Austrian actress
• Jester Weah (born 1995), American football player
• The Jester (hacktivist), computer vigilante

• Newcastle Jesters, an English ice hockey team
• Royal Order of Jesters, a fraternal organization
• The Jester (roller coaster), at Six Flags New Orleans
• Jester (sailboat)
• Jester Center, a University of Texas at Austin residence hall
• Jester Rock, Antarctica
• Jesters, butterflies of the genus Symbrenthia
  • Common jester, Symbrenthia lilaea

• "The Jester from Leicester", nickname of the English snooker player Mark Selby