| State: | TN |
| Type: | Sec |
| Route: | 342 |
| Map Custom: | yes |
| Map Notes: | TN 342 highlighted in red |
| Length Mi: | 7.5 |
| Established: | July 1, 1983[1] |
| Direction A: | West |
| Terminus A: | Panther Creek Park Road and Panther Creek Road northwest of Morristown |
| Junction: | in Morristown |
| Direction B: | East |
| Terminus B: | southwest of Morristown |
| Counties: | Hamblen |
| Previous Type: | Sec |
| Previous Route: | 341 |
| Next Type: | Sec |
| Next Route: | 343 |
State Route 342 (SR 342) is a state highway in Hamblen County in the eastern part of the U.S. state of Tennessee. The western portion of the route (from US 11E west) serves as a connector to Panther Creek State Park.[2]
SR 342 begins inside Panther Creek State Park at the intersection of Panther Creek Park Road and Panther Creek Road. The route then heads southeast to junction with US 11E and the two routes begin a short 1.2adj=midNaNadj=mid concurrency to and intersection with SR 160 where SR 342 turns south along SR 160. The two routes begin a short 1.9adj=midNaNadj=mid concurrency. Then SR 342 turns southeast and meets its eastern terminus, an intersection with SR 66.[2]