Jester may refer to:
- Harley Quinn, a villain of the Batman theme, who appears similar to a Jester.
- Jester (Castle 2007), the Jester of the Castle (2007) theme.
- Jester (Kingdoms), the Jester of the Kingdoms theme.
- KC107 Male Jester Key Chain, a male minifigure with a jester shirt.
- KC108 Female Jester Key Chain, a female version of the male jester keychain.
- Jester (Minifigures), a minifigure appearing in Series 12 of the Minifigures theme.