Fabius
- County:
- Onondaga County
- County Seat:
- No
- Area (mi²):
- 0.426
- State:
- New York
Fabius is a village located in Onondaga County, New York. Fabius has a 2026 population of 324. Fabius is currently declining at a rate of -0.61% annually and its population has decreased by -2.41% since the most recent census, which recorded a population of 332 in 2020.