Quest 64 is a single-player role-playing video game developed by Imagineer and published by THQ. It was released for the Nintendo 64 in 1998 and was the first role-playing video game released for the system in the United States.

The game's story is set in Celtland, a fantastic medieval world that resembles Ireland. The playable character is an apprentice mage named Brian. Brian sets off to find his father, who has left the monastery of the mages - the player learns later that his father is looking for a thief who has stolen the "Eletale Book". The player must also collect elemental gems, which have been hoarded by powerful criminals, before confronting the game's final boss.