| State: | WY |
| Type: | WY |
| Route: | 191 |
| Alternate Name: | Mayoworth Road |
| Map Custom: | yes |
| Map Notes: | WYO 191 highlighted in red |
| Length Mi: | 11.71 |
| Length Round: | 2 |
| Length Ref: | [1] |
| Direction A: | West |
| Terminus A: | Mayoworth Road in Mayoworth |
| Direction B: | East |
| Terminus B: | in Kaycee |
| Counties: | Johnson |
| Previous Type: | US |
| Previous Route: | 191 |
| Next Type: | WY |
| Next Route: | 192 |
Wyoming Highway 191 (WYO 191) is an 11.71-longNaN-long state highway in Johnson County, Wyoming.
Wyoming Highway 191 begins its western end in the community of Mayoworth, located northwest of Kaycee.[2] [3] From there WYO 191 travels southeast towards Kaycee. Nearing its end the eastern terminus of Wyoming Highway 190 (Barnum Road), which serves the outlying community of Barnum, is intersected before meeting an interchange with I-25/US 87 at exit 254 in Kaycee. 0.16miles later WYO 191 reaches its eastern terminus at Wyoming Highway 196 and the western terminus of Wyoming Highway 192 (Sussex Road) in Kaycee.