| Acronym | Definition |
|---|
| CLIS➣Classe d'Intégration Scolaire (French: School Integration Class) |
| CLIS➣College of Information Studies (University of Maryland) |
| CLIS➣College of Library and Information Services (University of Maryland, College Park) |
| CLIS➣Carcinoma Lobulare in Situ (oncology) |
| CLIS➣Cebuana Lhuillier Insurance Solutions (Philippines) |
| CLIS➣Clear Lake Intermediate School (Houston, TX) |
| CLIS➣Consortium for Latino Immigration Studies (South Carolina) |
| CLIS➣Closed-Loop Instrument System |