A supergiant is a massive and luminous star, including:
- Blue supergiant, a hot supergiant star
- Yellow supergiant, a supergiant star with a temperature similar to the sun
- Red supergiant, a cool supergiant star
Supergiant may also refer to:
- Supergiant Games, a video game development company
- Super Giant, a Japanese superhero
- Alicella gigantea, the supergiant amphipod
- Rising Pune Supergiant, a former cricket team in the Indian Premier League
- Lucknow Super Giants, a cricket team in the Indian Premier League
- Type-cD galaxy, a supergiant elliptical galaxy
- Supergiant (comics), a fictional character in the Marvel Universe