CTSI
| Acronym | Definition |
|---|---|
| CTSI | Clinical and Translational Sciences Institute (various locations) |
| CTSI | Corbett Technology Solutions, Inc. (Chantilly, VA) |
| CTSI | Census Tract Street Index (US Census Bureau) |
| CTSI | California Traffic Safety Institute |
| CTSI | Carlson's Trophic State Index (US EPA) |
| CTSI | Child Traumatic Stress Initiative (US DHHS) |
| CTSI | Central Terminal Signaling Interface |