Willpower may refer to:
- 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
- Will to power, a philosophical concept by Friedrich Nietzsche
- Will Power (born 1981), Australian racing driver
- #willpower (will.i.am album), 2013
- Willpower (Today Is the Day album), 1994
- Willpower: Rediscovering the Greatest Human Strength, a book by psychologist Roy F. Baumeister