Lake Viking is an unincorporated community and census-designated place (CDP) in Daviess County, Missouri, United States.

[4] The Lake Viking CDP is located southwest of the center of Daviess County, around a reservoir named Lake Viking, an impoundment on South Big Creek, a tributary of the Grand River.

The CDP extends southwest as far as the village of Altamont.

The community is 3 miles (5 km) east of Interstate 35 and 68 miles (109 km) northeast of Kansas City.

This Daviess County, Missouri state location article is a stub.