Galena is a village in Delaware County, Ohio, United States.

There were 237 housing units at an average density of 148.1 per square mile (57.2/km2).

15.4% of all households were made up of individuals, and 6.1% had someone living alone who was 65 years of age or older.

The racial makeup of the village was 97.70% White, 0.66% Native American, and 1.64% from two or more races.

25.4% of all households were made up of individuals, and 9.8% had someone living alone who was 65 years of age or older.

Emergency medical services in Galena are provided by the Delaware County EMS.