Manassas Park
- County:
- Prince William County
- County Seat:
- No
- Area (mi²):
- 3.034
- State:
- Virginia
Manassas Park is a city located in Prince William County, Virginia. Manassas Park has a 2026 population of 16,611. Manassas Park is currently growing at a rate of 0.99% annually but its population has decreased by -3.22% since the most recent census, which recorded a population of 17,164 in 2020.