| State: | TN |
| Type: | Sec |
| Route: | 263 |
| Maint: | TDOT |
| Map Custom: | yes |
| Map Notes: | SR 263 highlighted in red |
| Length Mi: | 5.0 |
| Established: | July 1, 1983[1] |
| Direction A: | South |
| Terminus A: | in Carthage |
| Direction B: | North |
| Terminus B: | west of Defeated |
| Counties: | Smith |
| Previous Type: | TN |
| Previous Route: | 262 |
| Next Type: | Sec |
| Next Route: | 264 |
State Route 263 (SR 263) is a short north–south highway in Smith County, Tennessee. The road begins in Carthage and ends west of Defeated. The current length is 5miles.
SR 263 begins at an intersection with SR 25 in Carthage. The highway goes northward over steep and rugged terrain as it passes by Cordell Hull Dam and Lake. After passing the dam, SR 263 passes an overlook of the lake and then winds north-northeastward to its northern terminus on SR 85.