| Parnassos | |
| Name Local: | Παρνασσός |
| Type: | municipal unit |
| Periph: | Central Greece |
| Periphunit: | Phocis |
| Pop Municunit: | 1610 |
| Population As Of: | 2021 |
| Area Municunit: | 87.03 |
| Coordinates: | 38.6333°N 53°W |
| Licence: | ΑΜ |
Parnassos (Greek, Modern (1453-);: Παρνασσός) is a former municipality in Phocis, Greece, named after Mount Parnassus. Since the 2011 local government reform it is part of the municipality Delphi, of which it is a municipal unit.[1] The municipal unit has an area of 87.033 km2.[2] Population 1,610 (2021). The seat of the municipality was in Polydrosos.