Walum is an unincorporated community in Griggs County, in the U.S. state of North Dakota.
A post office called Walum was established in 1904, and remained in operation until 1973. The community was named for Marinus Wallum, an early settler.
Coordinates: 47°16′11″N 98°11′40″W / 47.26972°N 98.19444°W