| Official Name: | Southside, Tennessee |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Tennessee#USA |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Tennessee |
| Subdivision Type2: | County |
| Subdivision Name2: | Montgomery |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 597 |
| Coordinates: | 36.3714°N -87.2956°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 37171 |
| Area Code: | 931 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1270923 |
Southside is an unincorporated community in Montgomery County, Tennessee, United States. Southside is located in the southeast corner of the county, 11.5miles south-southeast of Clarksville. Southside had a post office until it closed on October 12, 2002; it still has its own ZIP code, 37171.[1] [2]
Historic Collinsville, a living museum of 19th-century life, is located near Southside. The Lafayette Furnace, which is listed on the National Register of Historic Places, is also near the community.