Bark River Township is a township located in Delta County in the U.S. state of Michigan. As of the 2000 census, the township had a total population of 1,650. The township takes its name from the Bark River.
According to the United States Census Bureau, the township has a total area of 118.2 km2 (45.6 mi2). 118.1 km2 (45.6 mi2) of it is land and 0.2 km2 (0.1 mi2) of it is water. The total area is 0.13% water.