Enter the Ninja is a 1981 American martial arts film directed by Menahem Golan and starring Franco Nero, Susan George, Sho Kosugi and Christopher George. The film is about a martial artist named Cole (Nero) who is visiting his friend Frank in the Philippines. On arrival, Cole learns that his friend is being harassed by the wealthy businessman Charles Venarius who wants Frank's land for the oil underneath. Frank and his wife are continuously thwarted by Cole who defends them with his martial arts skills. Learning of Cole's presence, Venarius hires his own ninja (Kosugi).

Menahem Golan was an Israeli film producer, screenwriter, and director. He co-owned The Cannon Group with his cousin Yoram Globus. Cannon specialized in producing low-to-mid-budget American films, primarily genre films, during the 1980s after Golan and Globus had achieved significant filmmaking success in their native Israel during the 1970s.