Wisconsin Highway 91

State Trunk Highway 91
WIS 91 highlighted in red
Route information
Maintained by WisDOT
Length	18.83 mi (30.30 km)
Major junctions
West end	WIS 49 in Berlin
East end	I-41 / US 41 / WIS 44 in Oshkosh
Location
Country	United States
State	Wisconsin
Counties	Green Lake, Winnebago
Highway system
Wisconsin State Trunk Highway System Interstate US State Scenic Rustic
← WIS 90 → WIS 92

State Trunk Highway 91 (often called Highway 91, STH-91 or WIS 91) is a state highway in the U.S. state of Wisconsin. It runs east–west in east-central Wisconsin from near Berlin to Oshkosh.