| Acronym | Definition |
|---|
| CLEO➣Community Legal Education Ontario (legal aid clinic) |
| CLEO➣Compact Library Extension Organizer (Firefox add-on) |
| CLEO➣Council on Legal Education Opportunity |
| CLEO➣Cumbria and Lancashire Education Online |
| CLEO➣Chief Law Enforcement Officer |
| CLEO➣Conference On Lasers and Electrooptics |
| CLEO➣Chief Local Elected Official (various locations) |
| CLEO➣Customized Learning Experience Online (Carnegie Mellon University) |
| CLEO➣Clear Language for Expressing Orders (computer language) |
| CLEO➣Center in Law, Economics and Organization |
| CLEO➣Computer Listings of Employment Opportunities (est. 1984; Torrance, CA) |
| CLEO➣Classified Energy Online |
| CLEO➣Come Listen Every One (Korean pop group) |
| CLEO➣Centrum voor Landbouw-Economisch Onderzoek (Dutch: Center for Agriculture-Economic Research) |