| Acronym | Definition |
|---|
| CECI | Command Level Interpreter |
| CECI | Centre Canadien d'Étude et de Coopération Internationale (French) |
| CECI | Center for Educational Computing Initiatives |
| CECI | Centre Canadien d'Etudes et de Cooperation Internationale |
| CECI | Coral Energy Canada, Inc. (Halifax, Nova Scotia, Canada) |
| CECI | Citizens' Empowerment Center in Israel |
| CECI | Certified Expert Criminal Investigator (Lunarline School of Cybersecurity; various locations) |
| CECI | Consulting Engineers Council of Illinois |
| CECI | Certified Erosion Control Inspector (Oregon) |
| CECI | Office of the Deputy Chief of Staff for Corporate Information (USACE) |