Cardington is a village in Morrow County, Ohio, United States. The population was 1,849 at the 2000 census. Mount Gilead, Ohio, the county seat, is located northeast of Cardington on U.S. Route 42.
Cardington is located at 40°29′57″N 82°53′37″W / 40.49917°N 82.89361°W / 40.49917; -82.89361 (40.499117, -82.893693). It is considered to be a part of "Central Ohio."
According to the United States Census Bureau, the village has a total area of 1.9 square miles (4.8 km²), all of it land.