| Worldwide |
OAS |
Organisation Armee Secrete French |
Associations & Organizations // Extremist Groups |
| United Kingdom |
OAS |
Oxford Art Society |
Associations & Organizations // Arts Associations |
| United States |
OAS |
Office of Aviation Services |
Governmental // Departments & Agencies |
| Worldwide |
OAS |
Oracle Application Server |
Computing // Software & Applications |
| United States |
OAS |
Office of Applied Studies |
Governmental // Census & Statistics |
| Worldwide |
OAS |
Open Aortic Surgery |
Medical // Surgery |
| Canada |
OAS |
Ontario Archaeological Society |
Associations & Organizations // Regional Organizations |
| Worldwide |
OAS |
Organization of American States |
Associations & Organizations // International Orgaizations |
| Worldwide |
OAS |
O-acetylserine |
Medical // Biochemistry |
| Worldwide |
OAuth |
Open Authorization |
Computing // Security |
| Worldwide |
OAuth |
Open Authorization |
Computing // Security |
| India |
OBC |
Oriental Bank of Commerce |
Business // Banking |
| Canada |
OBC |
Ontario Building Code |
Academic & Science // Architecture & Constructions |
| India |
OBC |
Other Backward Class |
Governmental // Census & Statistics |
| Spain |
OBC |
Orquestra Simfonica de Barcelona i Nacional de Catalunya Catalan |
Arts // Musical groups |
| Worldwide |
OBC |
Organic & Biomolecular Chemistry |
News & Entertainment // Journals & Publications |
| India |
OBC |
Oriental Bank of Commerce |
Business // Banking |
| Netherlands |
OBC |
Over Betuwe College |
Academic & Science // Universities & Institutions |
| Canada |
OBC |
Order of British Columbia |
Society & Culture // Awards |
| Japan |
OBC |
Osaka Broadcasting Corporation |
News & Entertainment // TV & Radio |