| State: | UT |
| Type: | SR |
| Route: | 274 |
| Alternate Name: | Main Street |
| Section: | 133 |
| Map Custom: | yes |
| Map Notes: | SR-274 highlighted in red |
| Length Mi: | 1.257 |
| Length Round: | 3 |
| Length Ref: | [1] |
| Established: | 1975 |
| Direction A: | South |
| Terminus A: | in Parowan |
| Direction B: | North |
| Terminus B: | in Parowan |
| Previous Type: | SR |
| Previous Route: | 273 |
| Next Type: | SR |
| Next Route: | 275 |
State Route 274 is a state highway completely within Parowan in the southwestern portion of the US state of Utah that connects SR-143 with I-15. The entirety of the highway is routed along Main Street.
The route proceeds north along a two-lane undivided highway from the intersection of Center Street (SR-143) and Main Street in the middle of Parowan in Iron County. The road exits the center of Parowan and passes the Parowan Airport before terminating at a diamond interchange at exit 78 on I-15.
With the construction of I-15 around Parowan imminent, SR-1 was moved from old US-91 to the proposed bypass in 1968. SR-143, which had ended at SR-1 (Main Street) in Parowan, was extended north on Main Street and a planned connection to I-15 at exit 78.[2] However, plans had changed by the time I-15 was completed in 1975, and a second interchange (exit 75) served the west side of Parowan. SR-143 was instead rerouted south and west to meet I-15 there, and what had become part of SR-143 in 1968 was instead redesignated SR-274.[3]