Ostrander (/ˈoʊstrændər/ OH-stran-dər[4]) is a village in Delaware County, Ohio, United States.

[6] Ostrander was placed along the CCC&I Railroad, which served as the village's lifeline for much of its history.

Although the tracks running through Ostrander were taken out of service in 1971, evidence of its locomotive history remains with a railroad bridge over Blues Creek.

[7] According to the United States Census Bureau, the village has a total area of 0.84 square miles (2.18 km2), all land.

17.6% of all households were made up of individuals, and 8.8% had someone living alone who was 65 years of age or older.

The racial makeup of the village was 97.7% White, 0.5% African American, 0.3% Asian, and 1.6% from two or more races.

Law enforcement in Ostrander is the responsibility of the Ostrander Police Department; fire protection is provided by the Scioto Township Fire Department, and emergency medical services are provided by the Delaware County EMS.