Cube is a 2021 Japanese science fiction horror film written by Koji Tokuo and directed by Yasuhiko Shimizu. It is a remake of the 1997 Canadian film of the same name and the fourth film in the Cube series. The film stars Masaki Suda, Anne Watanabe, Masaki Okada, Hikaru Tashiro, Takumi Saito and Kōtarō Yoshida. It was released in Japan on October 22, 2021.

The story centers on a group of strangers who awaken in a cube-shaped room connected to adjacent rooms, forming an elaborate maze filled with traps. As they navigate the maze in an attempt to escape, they confront personal secrets, and tensions arise, testing their trust and cooperation. The film explores themes of survival and paranoia, reinterpreting the original concept within a Japanese cultural context.