Top Cat Begins (also known in Spanish as Don Gato: El Inicio de la Pandilla, Top Cat: The Start of the Gang) is a 2015 computer-animated comedy film produced by Ánima Estudios and distributed by Warner Bros. Pictures in Mexico with portions outsourced to Prana Studios and Discreet Arts Productions in India. Based on the Hanna-Barbera animated television series Top Cat, this film is a prequel to both the series and the previous film, taking place before Top Cat met his gang.

The film was first released in Mexico on October 30, 2015, where it was moderately successful, while underperforming its more successful predecessor, and has grossed $54.1 million pesos.

Internationally, the film was later released in the United Kingdom on May 27, 2016, distributed by Kaleidoscope Film Distribution and Warner Bros. UK, where it was met with negative reviews and was a major box office bomb.

The film was released in limited form on September 29, 2017 in the United States and later on October 10 in home video and digital platforms, distributed by Viva Pictures. The film has grossed a worldwide total of $4.6 million on an $8 million budget.