M-111 was the designation given to two former state trunklines in the U.S. state of Michigan:
*
M-111 (1928 Michigan highway)
M-47 is a north–south state trunkline highway in the US state of Michigan. It runs near Saginaw and Midland in the Tri-Cities area of the Lower Peninsula. The highway runs through suburban and agricultural areas to connect the two cities with ...
in the Bay City area
*
M-111 (1938 Michigan highway)
M-26 is a state trunkline highway in the U.S. state of Michigan, running from east of Rockland to its junction with US Highway 41 (US 41) in Copper Harbor. It generally runs southwest-to-northeast in the western half or Michigan's ...
in Keweenaw County
{{end box