| State: | WY |
| Type: | WY |
| Route: | 231 |
| Alternate Name: | E. Main Street |
| Map Custom: | yes |
| Map Notes: | WYO 231 highlighted in red |
| Length Mi: | 0.6 |
| Length Ref: | [1] |
| Direction A: | West |
| Terminus A: | in Cokeville |
| Direction B: | East |
| Terminus B: | in Cokeville |
| Counties: | Lincoln |
| Previous Type: | WY |
| Previous Route: | 230 |
| Next Type: | WY |
| Next Route: | 232 |
Wyoming Highway 231 (WYO 231) is a 0.6adj=midNaNadj=mid state highway in southeastern Lincoln County, Wyoming that serves as the main street of the town of Cokeville.
Wyoming Highway 231 is a 1/2 mile long spur of US 30 locally known as E. Main Street. Highway 231's western terminus is at Collette Avenue (CR 207) which provides access to Cokeville Municipal Airport (via CR 207 south).[1] The east end of Highway 231 is at U.S. Route 30/Wyoming Highway 89 and the western terminus of WYO 232.[1]