MonsterQuest (sometimes written as Monsterquest or Monster Quest) is an American television series that originally aired from October 31, 2007 to March 24, 2010 on the History channel. Produced by Whitewolf Entertainment, the program deals with the search for various cryptozoological creatures (cryptids) and paranormal entities reportedly witnessed around the world. A spin-off show, MysteryQuest, which focuses on unsolved mysteries, premiered on September 16, 2009.

The purpose of the show is best described by the narrator, Stan Bernard, in the introduction:

Witnesses ("People" for Season 4) around the world report seeing monsters. Are they real or imaginary? Science searches for answers...on MonsterQuest.