Tenstrike is a city in Beltrami County, Minnesota, United States. The population was 201 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 4.5 square miles (11.6 km²), of which 3.3 square miles (8.5 km²) are land and 1.2 square miles (3.1 km²) (26.46%) are water.
As of the census of 2000, there were 195 people, 83 households, and 52 families residing in the city. The population density was 59.5 people per square mile (23.0/km²). There were 110 housing units at an average density of 33.6 per square mile (12.9/km²). The racial makeup of the city was 95.38% White, 3.59% Native American, 0.51% from other races, and 0.51% from two or more races. Hispanic or Latino of any race were 1.03% of the population.