| Acronym | Definition |
|---|
| CCIS | Child Crisis Intervention Service |
| CCIS | Common Channel Interoffice Signaling |
| CCIS | College Consortium for International Studies (Washington, DC) |
| CCIS | Center for Comparative Immigration Studies |
| CCIS | Common Channel Interoffice Signaling System |
| CCIS | Command and Control Information System |
| CCIS | Child Care Information Services |
| CCIS | Chamber of Commerce Industry and Services (various locations) |
| CCIS | Cleveland Council of Independent Schools (Ohio) |
| CCIS | California Consortium for Independent Study (Concord, CA) |
| CCIS | Center for Construction Industry Studies (University of Texas) |
| CCIS | Centennial Centre for Interdisciplinary Science (University of Alberta; Edmonton, Alberta, Canada) |
| CCIS | Center for Clinical Immunology at Stanford (Stanford University School of Medicine; Stanford, CA) |
| CCIS | Client Caseload Information System (Connexions, UK) |
| CCIS | Command & Control Information System |
| CCIS | Certified Compliance Inspector of Stormwater (professional certification) |
| CCIS | Children's Crisis Intervention Services |
| CCIS | Chambers of Commerce and Industry of Switzerland |
| CCIS | Common Channel Interswitch Signaling |
| CCIS | Command Center Information System |
| CCIS | College of Computer Information Sciences (various locations) |
| CCIS | Command Center Information Subsystem |
| CCIS | Command and Control Interswitch Signaling |
| CCIS | Columbia College Information System |
| CCIS | Command, Control and Intelligence System |
| CCIS | County Corrections Information System (New Jersey) |
| CCIS | Commissioned Corps Issuance System |