Entertainment
- Monica (Monica's Gang), a character in the Monica's Gang comic strip
- Monica, a planet in David Weber's science fiction Honorverse
- Monica, a fictional country in the Æon Flux universe
- "Monica", a song by The Kinks on their 1968 album The Kinks Are the Village Green Preservation Society
- "Monica", a song by Dan Bern on his album Fifty Eggs
- "Monica", a 1984 hit song by Leslie Cheung
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