Matsya is the first avatar of Vishnu in Hindu mythology.
Matsya can also refer to:
- Matsya (tribe), ancient tribe/kingdom
- Matsya Purana, ancient Hindu text
- Matsya Kingdom, ancient Hindu Kingdom of India
- Matsya Union, part of Unification of Rajasthan
- "Matsya", an episode of the Indian TV series Sacred Games
See also
- Matsyendranath, the patron deity of Nepal