Ellis Township is a township located in Cheboygan County in the U.S. state of Michigan. As of the 2000 census, the township had a total population of 519.
According to the United States Census Bureau, the township has a total area of 92.3 km2 (35.6 mi2). 92.1 km2 (35.6 mi2) of it is land and 0.1 km2 (0.1 mi2) of it is water. The total area is 0.14% water.