Parthia is a historical region located in northeastern Iran.
Parthia may also refer to:
- Parthian Empire, an empire ruled by Parthians
- Pahla, the late antique and post-islamic region of the Parthians in Western Iran
- Parthia (horse), a thoroughbred racehorse
- Alternate form of Partita, a musical form
- Parthia, two ships of the Cunard Line
- Parthia (moth) a genus of moths in the family Pyralidae