King of the Monsters 2 (キング・オブ・ザ・モンスターズ2) also known as King of the Monsters 2: The Next Thing is a fighting/wrestling game released on May 25, 1992 by SNK. It is a sequel to the 1991 game King of the Monsters. In this game three of the previous game's surviving monsters return and battle across the Globe against giant alien monsters that threaten the Earth.

The game was later ported to the Super Nintendo and Sega Genesis by Takara. This sequel takes the original in a new direction by using three of the monsters from the original game as heroes in a side-scrolling beat 'em up. Geon, Astro Guy, and Woo all upgrade themselves to defend Earth against an alien threat led by a creature called Famardy. The game also features a 2-player competition mode.

The Genesis version, however, plays more similarly to the first game. It is a 1v1 fighter with less emphasis on grapples and more on special attacks with complex inputs. All boss monsters (except Famardy) are now playable and have expanded movesets.