| State: | WI |
| Type: | WI |
| Route: | 85 |
| Length Mi: | 23.48 |
| Length Ref: | [1] |
| Length Round: | 2 |
| Map Custom: | yes |
| Map Notes: | WIS 85 highlighted in red |
| Direction A: | West |
| Terminus A: | in Durand |
| Direction B: | East |
| Terminus B: | southwest of Eau Claire |
| Counties: | Pepin, Dunn, Eau Claire |
| Previous Type: | WI |
| Previous Route: | 84 |
| Next Type: | WI |
| Next Route: | 86 |
State Trunk Highway 85 (often called Highway 85, STH-85 or WIS 85) is a 23.48miles state highway in Pepin, Dunn, and Eau Claire counties in Wisconsin, United States.
WIS 85 runs east–west in west central Wisconsin from Durand to just southwest of Eau Claire. About midway along the route, the highway passes through Rock Falls, and 3miles further, Caryville, the only two recognizable settlements between the route's termini. In recent years, the corridor between Rock Falls and Caryville, especially the western side of the highway along the Chippewa River, has seen some suburban development.[2]