| Abbreviation | Definition |
|---|---|
| CISO | Council of International Student Organizations |
| CISP | California International Studies Project |
| CISP | Center for International Students and Programs |
| CISR | Center for Information Systems Research |
| CISR | Center for Intelligent Systems Research |
| CISR | Center for Interdisciplinary Systems Research |
| CISR | Center for Iron and Steelmaking Research |
| CISR | Centre for Independent Social Research |
| CISR | Centre for Invasive Species Research |
| CISSM | Center for International and Security Studies at Maryland |
| CISTI | Canada Institute for Scientific and Technical Information |
| CISU | Cologne International Summer University |
| CISU | Confucius Institute at Stellenbosch University |
| CISV | Centro Italiano de Studi Vessillologici (Italian Centre of Vexillological Studies) |
| CIT | California Institute of Technology |
| CIT | Cebu Institute of Technology |
| CIT | Center for Innovative Teaching |
| CIT | Center for Innovative Technology |
| CIT | Center for Innovative Thinking |
| CIT | Center for Instructional Technologies |