Once a Hero may refer to:
- Once a Hero, an ABC 1987 science fiction comedy television series
- Once a Hero (novel), a novel by Elizabeth Moon
- Once a Hero (NCIS), an episode of NCIS
- Once a Hero (Hercules: The Legendary Journeys), an episode of Hercules: The Legendary Journeys
- Once a Hero (film), a 1931 film directed by Fatty Arbuckle
| This disambiguation page lists articles associated with the title Once a Hero.
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