Interstate 35W (I-35W) is an Interstate Highway in the US state of Minnesota, passing through downtown Minneapolis. It is one of two through routes for I-35 through the Twin Cities of Minneapolis and Saint Paul, the other being I-35E through downtown Saint Paul.

Interstate 35 (I-35) is a north–south Interstate Highway that stretches from Laredo, Texas, to Duluth, Minnesota. In the US state of Minnesota, I-35 enters from Iowa and heads north toward the twin cities of Minneapolis and Saint Paul. South of the metropolitan area, I-35 splits into two branches; I-35E runs through Saint Paul and I-35W through Minneapolis. These two branches rejoin north of the Twin Cities, and the highway continues north to Duluth, where it terminates at State Highway 61 (MN 61). The highway was authorized in 1956 and the first segment opened in 1958. It reached Duluth in 1971, and the final segment to east Duluth opened in 1992.