Places beginning with OR in Ohio, United States
- Oran
- Orange
- Orange
- Orange
- Orangeburg (historical)
- Orange Center
- Orange, Township of
- Orange, Township of
- Orange, Township of
- Orange, Township of
- Orange, Township of
- Orange, Township of
- Orange, Village of
- Orangeville
- Orangeville, Village of
- Orbiston
- Orchard Acres (subdivision)
- Orchard Beach
- Orchard Grove (subdivision)
- Orchard Heights (subdivision)
- Orchard Hill (subdivision)
- Orchard Island
- Orchard View
- Oregon
- Oregon, City of
- Oregon Corners
- Oregonia
- Oreton
- Oreville
- Orient
- Orland
- Orpheus
- Orrville
- Orwell
- Orwell, Township of