| Acronym | Sense | Language | Topics |
|---|---|---|---|
| CAO | Cost Administration Office | In English | → Prices |
| CAO | Conception Assistée par Ordinateur | In French | → Computer-based techniques → Engineering, technology |
| CAO | Comunidad Africana Oriental (www.eac.int) = EAC | East African Community | In English = CAE | Comunidad de África del Este | In Spanish |
In Spanish | → International relations → Africa |
| CAO | Chief Administrative Officer | In English | → Management |
| CAO | Collectieve Arbeidsovereenkomst | In Dutch | → Labour, labour economics |
| CAO | Central Accounting Office | In English | → Accounting |
| CAO | Commission d'Appel d'Offres | In French |