Look up trespasser in Wiktionary, the free dictionary.

Trespasser is, in the law of tort, property law and criminal law, a person who commits the crime of trespassing on a property.

Trespasser or variant may refer to:

• Trespasser (video game), a 1998 computer game made for Microsoft Windows
• Dragon Age: Inquisition – Trespasser, a 2015 downloadable content expansion for Dragon Age: Inquisition
• HMS Trespasser (P312), British Royal Navy ship name
• HMS Trespasser (P312), British submarine
• The Trespasser (1929 film), a 1929 American pre-Code film
• The Trespassers, a 1976 Australian film
• The Trespasser (1947 film), a 1947 American action film
• The Trespasser, a 1981 television film adaptation of D.H. Lawrence's novel
• The Gate II: Trespassers (1990 film), Canadian horror film
• Trespassers (album), 2010 Danish album by Kashmir
• The Trespasser (novel), 1912 novel by D.H. Lawrence
• "Trespassers" (Gotham), an episode of Gotham