| CLIS | C Like Intepreted Script 
| Others |
| CLIS | Called Line Identification Signal
| Others |
| CLIS | Canadian Labour Insurance Services
| Others |
| CLIS | Cebuana Lhuillier Insurance Solutions
| Others |
| CLIS | Centre for Learner Identity Studies
| Others |
| CLIS | Certificate of Library and Information Science
| Others |
| CLIS | Christian Leadership Institute of Sudan
| Others |
| CLIS | Clinical Laboratory Improvement Service
| Others |
| CLIS | Clinical Laboratory Improvement Services
| Others |
| CLIS | College of Library and Information Services
| Others |
| CLIS | Completely Locked In State
| Others |
| CLiS | Corpus Linguistics in Scotland
| Others |
| CLIS | Critical Languages and International Studies
| Others |