Greenwich is a village in Huron County, Ohio, United States. The population was 1,525 at the 2000 census. It is served by a branch of the Willard Memorial Library.
Greenwich is located at 41°1′51″N 82°31′2″W / 41.03083°N 82.51722°W / 41.03083; -82.51722 (41.030877, -82.517181).
According to the United States Census Bureau, the village has a total area of 1.4 square miles (3.5 km²), of which, 1.4 square miles (3.5 km²) of it is land and 0.04 square miles (0.1 km²) of it (1.46%) is water.