Clockwork Knight is a side-scrolling platform video game developed and published by Sega for the Sega Saturn. It was released in Japan on December 9, 1994, and as a launch title in North America and Europe, on May 11 and July 8, 1995, respectively. It was followed by Clockwork Knight 2.

A platformer is a sub-genre of action video games in which the core objective is to move the player character between points in an environment. Platform games are characterized by levels with uneven terrain and suspended platforms of varying height that require jumping and climbing to traverse. Other acrobatic maneuvers may factor into the gameplay, such as swinging from vines or grappling hooks, jumping off walls, gliding through the air, or bouncing from springboards or trampolines.