| Abbreviation | Definition |
|---|---|
| COSAS | College of Sciences Academic Services |
| COSAS | College of Sciences Advising Services |
| COSC | Charter Oak State College |
| COSCC | College of Science Curriculum Committee |
| COSCC | College of Sciences Curriculum Committee |
| COSE | College Of Science and Engineering |
| COSH | College Of Science and Health |
| COSL | College of Operational and Strategic Leadership |
| COSL | College of Ophthalmologists of Sri Lanka |
| COSM | College Of Science and Mathematics |
| COSP | College Of Sport Psychologists |
| COSRT | College of Sexual and Relationship Therapists |
| COSRT | College of Sexual and Relationship Therapy |
| COSRT | College of Sexual Relationship Therapists |
| COSS | College Of Social Sciences |
| COSTAATT | College of Science Technology and Applied Arts of Trinidad and Tobago |
| COSTAATT | College of Science, Technology and Applied Arts of Trinidad and Tobago |
| COT | College of Occupational Therapy |
| COT | College of Office Technology |
| COT | College of Technology |