| Acronym | Definition |
|---|
| TCSA➣Trent Central Student Association (Peterborough, Ontario, Canada) |
| TCSA➣Toronto City Summit Alliance (Ontario, Canada) |
| TCSA➣Technical Customer Support Agent (UK) |
| TCSA➣Troop Commander Situational Awareness |
| TCSA➣Tri-City Soccer Association (various locations) |
| TCSA➣Trophy Club Soccer Association |
| TCSA➣Tri-State College of Acupuncture |
| TCSA➣Telecommunications Systems Control Association |
| TCSA➣Turbine Control Service Associates, Inc. |
| TCSA➣The Cheese Stands Alone (Chicago, IL) |