| Acronym | Definition |
|---|
| CSAO➣Compagnie du Sénégal et de l'Afrique de l'Ouest (French: Company of Senegal and West Africa) |
| CSAO➣Club du Sahel et de l'Afrique de l'Ouest (French: Sahel and West Africa Club) |
| CSAO➣chief student affairs officer |
| CSAO➣Central State Administration Office (Croatia) |
| CSAO➣Chief Scientific Applications Officer |
| CSAO➣Chinese Shaanxi Astronomical Observatory (Lintong, China) |
| CSAO➣Computer Software Assisted Ordering (bio-computing) |
| CSAO➣Computer Science: an Overview (educational course) |