Fincastle
- County:
- Botetourt County
- County Seat:
- Yes
- Area (mi²):
- 2.046
- State:
- Virginia
Fincastle is a town located in Botetourt County, Virginia. Fincastle has a 2026 population of 823. It is also the county seat of Botetourt County. Fincastle is currently declining at a rate of -0.12% annually but its population has increased by 0.86% since the most recent census, which recorded a population of 816 in 2020.