Other
- Firebrand (horse), a British Thoroughbred racehorse
- Firebrand Games, a video game company
- A sword that appears in Castlevania: Symphony of the Night, the Final Fantasy series, NetHack, and other video games
- A nickname given to Fiach McHugh O'Byrne, an Irish rebel
- Firebrand, a member of 'The Collective' in the fictional online YouTube Slender Man series, TribeTwelve.
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