Allen is a village in Hillsdale County in the U.S. state of Michigan. As of the 2000 census, the village had a total population of 225.
The village is within Allen Township at the junction of U.S. Highway 12 and Michigan State Highway 49.
According to the United States Census Bureau, the village has a total area of 0.4 km2 (0.2 mi2). 0.4 km2 (0.2 mi2) of it is land and none of it is covered by water.