| State: | WI |
| Type: | WI |
| Route: | 112 |
| Map Custom: | yes |
| Map Notes: | WIS 112 highlighted in red |
| Length Mi: | 12.58 |
| Length Ref: | [1] |
| Direction A: | South |
| Direction B: | North |
| Terminus A: | in Marengo |
| Terminus B: | in Ashland |
| Counties: | Ashland |
| Previous Type: | WI |
| Previous Route: | 111 |
| Next Type: | WI |
| Next Route: | 113 |
| Junctions: |
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State Trunk Highway 112 (often called Highway 112, STH-112 or WIS 112) is a state highway in the U.S. state of Wisconsin. It runs in a north - south in northwest Wisconsin from Marengo to Ashland.
Starting at WIS 13 north of Marengo, WIS 112 starts to travel westward. After over 3miles of traveling westward, it then turns northward north of Sanborn. After crossing the river, it then intersects WIS 118. Continuing north, it then encounters the John F. Kennedy Memorial Airport, then enters the city of Ashland, and then intersects WIS 137 before it intersects US 2/WIS 13. At that point, the route ends there.