What does OOA stand for?

Object of Affections - Slang

Object-Oriented Analysis - Computer science

Office of Ocean Affairs - Navy

Office of the Americas - An association (EA)

Olive Oil Association (EA)

On or About (WDAA)

Open Ocean Area (SAA)

Optimum Orbital Altitude (AAG)

Optimum Orbital Attitude (SAUS)

Oskaloosa, IA - Location identifier - FAA (FAAL)

Outer Otic Anlage (DMAA)

Out of Action (MCD)

Out of Area (NVT)

Owner Operators of America - Boston, NY (EA)

Public Archives - Archives Publiques Ottawa, Ontario - Library symbol - National Library of Canada (NLC)