| State: | UT |
| Type: | SR |
| Route: | 115 |
| Section: | 117 |
| Map Custom: | yes |
| Map Notes: | SR-115 highlighted in red |
| Length Mi: | 8.247 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Established: | 1931[2] |
| Direction A: | South |
| Terminus A: | in Payson |
| Junction: | in Payson in Benjamin |
| Direction B: | North |
| Terminus B: | in Spanish Fork |
| Previous Type: | SR |
| Previous Route: | 114 |
| Next Type: | SR |
| Next Route: | 116 |
State Route 115 (SR-115) is a state highway in the U.S. state of Utah, connecting Payson and Spanish Fork by way of Benjamin in southwestern Utah County. Running for 8.2miles as a two-lane highway, the road runs from SR-198 in Payson north to Benjamin, before heading west toward Spanish Fork and terminating at SR-156. The road was placed under state jurisdiction in the 1930s.
State Route 115 begins on Main Street at the intersection of 100 North (SR-198) in Payson. Heading north, the route exits the town and intersects Interstate 15/U.S. Route 6 (I-15/US-6) within 0.7miles. Past I-15/US-6, the road exits the street grid of Payson and enters that of Utah County's, becoming 3200 West. The highway enters the rural community of Benjamin and, upon reaching SR-147, turns west on 7300 South. The road exits the community, passes under I-15/US-6, and turns north on 1550 West. The road turns northwest to parallel I-15/US-6 and then turns west onto 6800 West. Entering Spanish Fork as 100 South, the road terminates at Main Street (SR-156).
State Route 115 was established by the legislature in 1931 as running "from Spanish Fork westerly via Benjamin to Payson".[2] The route has not been changed since then.