Sea turtles are a species of animals seen in Grand Theft Auto: Vice City and Grand Theft Auto: San Andreas. In GTA: San Andreas they can frequently be seen underwater in Easter Bay, San Fierro. Like other sea creatures in the game, sea turtles cannot be interacted with and will move away from the player if they get too close.

In Grand Theft Auto: Vice City, the player can also kill a sea turtle (and any sea creature present in the game, like dolphins and sharks) by throwing grenades on him.