| Acronym | Definition |
|---|
| ATCC | American Type Culture Collection (Manassas, VA, USA) |
| ATCC | Air Traffic Control Center |
| ATCC | Australian Touring Car Championship |
| ATCC | Air Threat Conference Call (US National Military Command Center) |
| ATCC | Air Travel Complaints Commissioner (Canadian Transportation Agency) |
| ATCC | Airedale Terrier Club of Canada |
| ATCC | Antiterrorism Coordinating Committee (US DoD) |
| ATCC | Association Tunisienne de lutte contre le Cancer (French: Tunisian Association for fighting Against Cancer |
| ATCC | Auckland Triumph Car Club (New Zealand) |
| ATCC | American Technical Ceramics Corporation (Huntington Station, NY) |
| ATCC | Ashore Tactical Command Center |
| ATCC | Atlantic Division Transport Control Center (HQ) |