Hicksville is a village in Defiance County, Ohio, United States. The population was 3,649 at the 2000 census.
Hicksville was founded by a group of land speculators. Led by Henry W. Hicks, the Hicks Land Company platted the community in 1835 and 1836.
Hicksville is located at 41°17′39″N 84°45′43″W / 41.29417°N 84.76194°W / 41.29417; -84.76194 (41.294281, -84.762078).