|For the myth in GTA Vice City, see Sharks (GTA Vice City).|
|For the myth in GTA SA, see Sharks (GTA SA).|
|For the myth in GTA V, see Sharks (GTA V).|
Sharks have been a lightly debated myth in GTA IV, there is a small but persistent group of myth hunters that insist that sharks have appeared in every GTA game since GTA Vice City.
If the player takes a Higgins Heli Tour, the guide will sometimes mention that Liberty City's warm water attracts sharks to the city. A shark appears eating a barking dog on the program A History of Liberty - Part Two.
Sharks are unlikely to be in the game because of the lack of any other sea life in the game, plus the player lacks the ability to swim underwater.