Glennville is a city in southeastern Tattnall County, Georgia, United States.

The nearest major city is Savannah, approximately 50 miles (80 km) east of Glennville.

There are multiple partial concurrencies among route numbers; descriptions are omitted here for simplicity: As of the 2020 United States census, there were 3,834 people residing in the city; these included 1,477 households and 1,071 families.

Smith State Prison, a close-security facility, is located 2 miles north of Glennville.

[10] Glennville is the principal setting of Eternal Fire, a novel by Georgia-born author Calder Willingham.