Ninja Kids!!! (忍たま乱太郎, Nintama Rantarô) is a 2011 Japanese family-oriented comedy film directed by Takashi Miike. The film is live-action adaptation of the Japanese anime series Nintama Rantarō. The film stars Seishiro Kato as Rantaro who is sent to a ninja training school by his parents. During the summer, they are challenged by a group of rival ninjas which culminates in a race to ring a bell on top of a mountain.

Ninja Kids!!! had its world premiere at the New York Asian Film Festival on July 3, 2011 and was released theatrically in Japan on July 23 where it was the fourth-highest-grossing film in its opening week.