Teenage Mutant Ninja Turtles, known as Geki Kame Ninja Den in Japan and Teenage Mutant Hero Turtles in Europe, is a 1989 side-scrolling action-platform game for the Nintendo Entertainment System released by Konami. In North America it was published under Konami's Ultra Games imprint in the US and the equivalent PALCOM brand in Europe and Australia.

Teenage Mutant Ninja Turtles, released in Japan as TMNT: Super Kame Ninja and in Europe as Teenage Mutant Hero Turtles, is a 1989 beat 'em up arcade game released by Konami. It is based on the Teenage Mutant Ninja Turtles franchise, including the first animated series that began airing two years earlier. In the game, up to four players control the titular Ninja Turtles, fighting through various levels to defeat the turtles' enemies, including the Shredder, Krang and the Foot Clan. Released during a high point in popularity for the Teenage Mutant Ninja Turtles franchise, the arcade game was a worldwide hit, becoming the highest-grossing dedicated arcade game of 1990 in the United States and Konami's highest-grossing arcade game. Versions for various home systems soon followed, including the Nintendo Entertainment System. A sequel, Teenage Mutant Ninja Turtles: Turtles in Time, was released in 1991.