English abbreviations from oau to obcs
- OAU (Organization of African Unity)
- OAuth (Open Authentication)
- OAV (Object Attribute Value)
- OAW (Office Activation Wizard)
- OAX (Xoxocotlán International Airport)
- OAY (Outstanding Airman of the Year)
- OAYA (Outstanding Airman of the Year Award)
- OAZ (Ones And Zeros)
- ob (obiit (Latin, " he died"))
- Ob. (Obiit ("Died"))
- OBA (Oxygen Breathing Apparatus)
- OBB (Oklahoma Business Bulletin)
- OBC (Obock Airport)
- OBCS (Ocean Bottom Cable System)
