The Old Marion County Courthouse is a historic county courthouse building in Tazewell, Georgia, which served as the county seat of Marion County, Georgia for a short time.

The county seat was moved in 1850 to what is now Buena Vista, Georgia.

The site is commemorated with a historical marker.

[2][3] The building has also served as Marion Lodge No.

[3] The building was added to the National Register of Historic Places in 1980 and is located on Georgia State Route 137.