Big Piney
- County:
- Sublette County
- County Seat:
- No
- Area (mi²):
- 0.508
- State:
- Wyoming
Big Piney is a town located in Sublette County, Wyoming. Big Piney has a 2026 population of 390. Big Piney is currently declining at a rate of -1.76% annually and its population has decreased by -1.52% since the most recent census, which recorded a population of 396 in 2020.