United Nations Abbreviations and Acronyms

1. OPC
   Office of The President and Cabinet-Malawi
2. OPER
   Operations
3. OPM
   Other People'S Money
4. OPNS
   Operations
5. OPPBA
   Office of Programme Planning, Budget and Administration
6. OPPF
   Olof Palme Peace Foundation
7. OPR
   Operational Peer Review
8. OPS
   Operations
9. OSAGI
   Office of The Special Adviser of Issues and The Advancement of Women
10. OSAR
    Office Suisse D’aide Aux Refsgiés
11. OSCAL
    Office of The Special Coordinator for Africa and Lpcs
12. OSCE
    Organization for Security and Co-Operation in Europe
13. OSE
    Office Jf Special Envoy
14. OSM
    Operation Support Manual
15. OTCD
    Organizations of Turkic Cooperation and Development
16. OTH
    Other Trunk
17. OTH
    Other (on overtime forms)
18. OUN
    Organization of United Nations
19. OUO
    Official-Use Only
20. OYW
    One Year War

Last updated: September 19, 2021 — Total entries: 1,667