OAB
OAB is the abbreviation for
- Osservatorio Astronomico di Brera Observatory
- Osnabrück shares Brewery
- The extension " Outlook offline address book" in the Microsoft Outlook software. * oab
- " Overactive bladder ", a syndrome of overactive bladder
- A network of filling stations in Bulgaria: Opet Aygaz Bulgaria EAD
- The organization for academics and public officials
- The Brazilian Ordem dos Advogados Bar Association do Brasil
- Disambiguation
- Abbreviation