Obetz is a village in Franklin County, Ohio, United States. The population was 3,977 at the 2000 census, and estimated to be 4,079 as of 2005. The community was formed in 1838 as a railroad junction, and incorporated in 1928.
Obetz is located at 39°52′36″N 82°56′30″W / 39.87667°N 82.94167°W / 39.87667; -82.94167 (39.876763, -82.941801).
According to the United States Census Bureau, the village has a total area of 3.8 square miles (9.8 km²), all of it land.