| OAC | Oakton | Oath of allegiance |
| Oadby and WigstonOadby and Wigston is a local government district and borough in the English county of Leicestershire. It is composed of the two areas Oadby, and Wigston and some hinterland. It is predominantly urban, and runs directly into Leicester, to the north-west. | Oakland Hills firestormThe Oakland Hills Firestorm occurred on Sunday October 20, 1991. The fire is often referred to as the East Bay Hills fire since it struck the hills in both Oakland and Berkeley, California. The fire killed 25 people and injured 150. 2,449 single-family dw | OakhamOakham is the county town of Rutland, England, and has a population of about 20,000. It is close by the artificial lake Rutland Water, and has road links to Melton Mowbray, Corby, and Stamford. Travellers to Leicester must go via Uppingham and go east on |
| Oath of the Peach GardenThe Oath of the Peach Garden ( or ) was an oath by which the three fighters Liu Bei, Zhang Fei, and Guan Yu became sworn brothers in a ceremony amid peach blossom trees. This historical act binded the three most crucial men of the future Shu-Han Kingdom o | OankaliThe Oankali are a race of aliens in Octavia Butler's Xenogenesis trilogy (also published in an omnibus edition under the title Lilith's Brood . After the near-extinction of humanity in a nuclear war, the Oankali arrive in their organic interstellar ship a | Oakland, MaineOakland, Maine is said by residents to be the gateway to the Belgrade Lakes Region. The town of Oakland, population 5,959 ( Census 2000), is located in northern Kennebec County, four miles (6 km) west of Waterville and approximately eighteen miles (29 km) |
| Oak GroveOak Grove is the name of several places in the United States of America: Oak Grove, Kentucky Oak Grove, Louisiana Oak Grove, Missouri Oak Grove, Virginia Oak Grove, Wisconsin. | OakwoodOakwood is the name of some places in the United States of America: Oakwood, Georgia Oakwood, Illinois Oakwood, Missouri Oakwood, Cuyahoga County, Ohio Oakwood, Montgomery County, Ohio Oakwood, Paulding County, Ohio Oakwood, Oklahoma Oakwood, Pennsylvania | Oakworth HallOakworth Hall is located in Oakworth, West Yorkshire, United Kingdom. 2 miles from the Bronte Parsonage Manor, home of the Bronte Sisters. The manor was rebuilt in the 17th Century, but has a history dating back to 1066. The bright, south facing bedrooms |
| OASIS operating system | Oahspe | Oakley, Buckinghamshire |
| Oadby | Oak Cliff, Texas | Oakley (fashion) |
| Oath of Supremacy | Oak Hill | Oak Apple Day |
| Oak Lawn | Oakfield, New York | Oak Ridges Moraine |
| Oakley | Oakland University | Oakes Ames |
| Oasa, Hiroshima | OASys | Oak Street Connector/Route 34 |
| Oak Orchard State Marine Park | Oakland (Pittsburgh) | OA |
| Oahu Bowl | Oaklands Junction, Victoria | Oakleigh, Victoria |
| Oakum | Oatlands (disambiguation) | Oath of Abjuration |
| Oak Ridges—Markham | Oatley, New South Wales | Oak Island, Minnesota |
| Oakland Tribune | Oast house | Oakey, Queensland |
| Oak Hill Country Club | Oakland Zoo | Oaks Amusement Park |
| Oakleigh railway station, Melbourne | Oak Park railway station, Melbourne | Oakville |
| Oakland Arena | Oak Ridge Observatory | Oasis crater |
| OAG | Oak leaf cluster | Oakwood tube station |
| OAMP | Oamishirasato, Chiba | Oarai, Ibaraki |
| Oatman, Arizona | Oacoma | Oak City |
| Oak Creek | Oak Harbor | Oak Hills |
| Oak Valley | Oakfield | Oakford |
| Oakland Park | Oakport | Oaks |
| Oath of Allegiance (Canada) | Oakdale (As the World Turns) | Oakengates |
| Oak Orchard River | Oakland Oaks (basketball) | Oatka Creek |
| Oath of Citizenship | Oak bay | Oak 107 |
| Oat cell carcinoma | Oannes (Stargate) | Oakridge |
| Oak Bay, British Columbia | Oakwood, London | Oaklisp |
| OATH | Oakhurst Cottage | Oamaru stone |
| Oak savanna | Oakland Oaks | Oak Ridge Military Academy |
| Oatha | Oakes College | Oakwood College |
| Oan | Oatcake | Oak King |
