Willpower may refer to:
- Willpower, the strength to act, or forbear from acting, in the pursuit of a goal.
- Self discipline, Training and control of oneself and one's conduct, usually for personal improvement.
- Self control, the ability of a person to exert his/her will over the inhibitions of their body or self.
- Will (philosophy), a philosophical concept.
- The Will to Power, a philosophical concept by Friedrich Nietzsche.