Action film is a film genre in which one or more heroes are thrust into a series of challenges that typically include physical feats, extended fight scenes, violence, and frantic chases. Action films tend to feature a resourceful character struggling against incredible odds, which include life-threatening situations, a villain, or a pursuit which generally concludes in victory for the hero.

ACTION is a bus service operator in Canberra, Australia.

Action may refer to:

• Action (philosophy)
• Action (physics), an attribute of the development of a system over a period of time
• Action (fiction), a term or art in fiction
• Action film, a genre of film
• Action game, a genre of video game