| State: | TN |
| Type: | Sec |
| Route: | 161 |
| Map Custom: | yes |
| Map Notes: | SR 161 highlighted in red |
| Length Mi: | 9.9 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | in Springfield |
| Direction B: | North |
| Terminus B: | at the Kentucky State Line |
| Counties: | Robertson |
| Previous Type: | TN |
| Previous Route: | 160 |
| Next Type: | TN |
| Next Route: | 162 |
State Route 161 (SR 161) is a north–south state highway located entirely in Robertson County in Middle Tennessee. The route's southern terminus sits north of a junction between U.S. Route 431 (US 431) and US 41. Its northern terminus is at the Kentucky state line, where it becomes Kentucky Route 102 (KY 102).[1] [2]
SR 161 begins in Springfield at an intersection with US 431/SR 65 north of downtown in an industrial area. The highway then leaves Springfield and continues northwest through farmland. It passes through Barren Plains, where it has a Y-Intersection with SR 25. SR 161 continues northwest to cross a bridge over the Red River before coming to the Kentucky state line, where SR 161 becomes Kentucky Route 102.