Cities of United States starting with letter O Page 24
- Orlean
- Orleander Estates Colonia
- Orleans (Appanoose County)
- Orleans (Humboldt County)
- Orleans (Ionia County)
- Orleans (Kittson County)
- Orleans (Lincoln County)
- Orleans (Morgan County, Illinois)
- Orleans (Ontario County)
- Orleans Cross Roads
- Orleans Flat
- Orleans Four Corners
- Orma
- Ormand
- Ormanville
- Ormas
- Orme (Prince George's County)
- Ormega
- Ormewood
- Ormond
- Ormonde
- Ormondsville
- Ormrod
- Ormsby (Langlade County)
- Ormsby (McKean County)
- Orndoff
- Orners Corner
- Oro Blanco
- Oro Fino
- Oro Grande
- Oro Loma
- Orodell
- Orogrande (Idaho County)
- Oroleve
- Orondo
- Orono (Osceola County)
- Oronoco (Amherst County)
- Oronoco Estates
- Oronoke
- Oronoque
- Oronoque (Norton County)
- Oronoque Hills North
- Oronoque Hills South
- Oroville Junction
- Orozimbo
- Orpha
- Orpheum Village
- Orpheus
- Orr (Grand Forks County)
- Orr (Lawrence County, Kentucky)