Flintville is an unincorporated community in Lincoln County, Tennessee, United States. As of the 2010 census, its population was 627. Flintville is located approximately 10.5 miles (16.9 km) southeast of Fayetteville along Tennessee State Route 275 highway.

For statistical purposes, the United States Census Bureau has defined this community as a census-designated place (CDP).

Flintville has a post office with ZIP code 37335, which opened on February 16, 1861.