| Acronym | Definition |
|---|
| CAAO➣Consortium of African American Organizations |
| CAAO➣Center for Astronomical Adaptive Optics (University of Arizona) |
| CAAO➣County Auditors' Association of Ohio (Columbus, OH) |
| CAAO➣Connecticut Association of Assessing Officers (Hartford, CT) |
| CAAO➣Congress of Arab American Organizations (est. 2001) |
| CAAO➣China Appointed Attesting Officer (Hong Kong) |