Bethany
- County:
- Harrison County
- County Seat:
- Yes
- Area (mi²):
- 4.441
- State:
- Missouri
Bethany is a city located in Harrison County, Missouri. Bethany has a 2026 population of 2,912. It is also the county seat of Harrison County. Bethany is currently declining at a rate of -0.34% annually but its population has increased by 0.17% since the most recent census, which recorded a population of 2,907 in 2020.