Trunk Highway 310 (MN 310) is a highway in northwest Minnesota, which runs from its intersection with MN 11 and MN 89 in Roseau and continues north to its northern terminus at the Canadian border; where the route becomes Manitoba Provincial Road 310 (PR 310) upon crossing the border, near the community of South Junction, Manitoba.

MN 310 travels north through the city as 5th Avenue NW.

It passes just west of the Roseau County Fairgrounds before leaving the city and continuing north through rural northern Minnesota.

MN 310 treks through the forest for a few miles, then curves to the northeast just south of the Canadian border.

The route then reaches the border and continues into Manitoba as PR 310.