TMNT (also known as Teenage Mutant Ninja Turtles 4) is a 2007 American computer-animated action film based on the Teenage Mutant Ninja Turtles franchise. This is the fourth and final installment in the original film series. The film sees the Turtles grow apart after their defeat of The Shredder. Meanwhile, strange things are happening in New York City. An army of ancient creatures threatens to take over the world and the Turtles must unite again to save it.

It is the first Teenage Mutant Ninja Turtles film made with Computer-Generated Imagery (CGI) by Imagi Animation Studios. The previous films in the series were all live-action. It is the first film in the franchise in 14 years. Chronologically, the film takes place after the original films.Teenage Mutant Ninja Turtles was released on March 23, 2007, in a number of Eastern European and Asian countries, on March 23, 2007, in the United Kingdom, Canada, and the United States, and April 5, 2007, in Australia as well as subsequently in numerous other countries. It was the #1 film in the U.S. on its opening weekend, bringing in $25.45 million. It made its television debut on Cartoon Network on November 1, 2009.