(pronounced OR-ee-un) is a charter township of Oakland County in the U.S. state of Michigan. The population was 33,463 at the 2000 census with an estimated population of 34,281 as of July 1, 2007. The official motto of the township and village is "Where living is a vacation". Orion Township contains the much smaller village of Lake Orion. "Lake Orion", or the "Orion area", are often used to describe both the village and the township.
According to the United States Census Bureau, the township has a total area of 35.9 square miles (93.1 km²), of which, 33.3 square miles (86.4 km²) of it is land and 2.6 square miles (6.7 km²) of it (7.18%) is water.