Teresa's Tattoo (also known as Natural Selection) is a 1994 American action comedy-crime film directed by Julie Cypher.

Teresa's Tattoo was produced by CineTel Films, Trimark Pictures, and Yankee Entertainment Group Inc.

The film starts with Gloria (Adrienne Shelly), who is being held hostage, bothering her captors in charge of watching her, Mooney (Anthony Clark) and Titus (Matt Adler), by changing the channel the two were watching on television and jumping in front of the TV.

The film then cuts to a university where Teresa Brigger (also Adrienne Shelly), a mathematician grad student that bears an uncanny resemblance to Gloria, is talking to her friend Bruno, (Joe Pantoliano) about her plans for the upcoming spring break.

The film cuts back to the pool where Carl (C. Thomas Howell), Titus and Mooney's boss, shows up to find their hostage who is supposed to be exchanged later in a ransom deal with Gloria's half-witted brother, Michael (Casey Siemaszko) and his associate, Wheeler (Lou Diamond Phillips) for the earrings she is wearing that is secretly holograph plans to a confidential NASA space program, dead after drowning in the pool.