| Rank | Abbreviation | Meaning |
|---|
| ***** | TTCA | Toyota Technical Centre Australia
| |
| ***** | TTCA | 2,5,5-trimethylthiazolidine-4-carboxylic acid
| |
| ***** | TTCA | Tennis de Table Club Amplepuis
| |
| ***** | TTCA | Trinidad Tobago Contractors Association
| |
| ***** | TTCA | Thiazolidine 2 Thione 4 Carboxylic Acid
| |
| **** | TTCA | The Thomas Crown Affair
| |
| **** | TTCA | Thrust/Translation Controller Assembly
| |
| **** | TTCA | Traditional Tae Kwon Do Chung Do Association
| |
| **** | TTCA | Trinidad Tobago Cultural Association
| |
| **** | TTCA | thio-thiazolidine-4-carboxylic acid
| |
| **** | TTCA | transcutaneous transluminal coronary angioplasty
| |
| **** | TTCA | Tax Technical Corrections Act of 1998
| |
| *** | TTCA | Thiazolidinthion 4 Carboxylic Acid
| |
| *** | TTCA | Transit Transport Coordination Authority
| |
| *** | TTCA | Thiothiazolidine 4 Carboxylic Acid
| |
| *** | TTCA | Trinidad Tobago Chess Association
| |
| *** | TTCA | Tax Technical Corrections Act
| |
| *** | TTCA | Texas Tennis Coaches Association
| |
| ** | TTCA | Train Touristique de Chaudiere-Appalaches
| |
| ** | TTCA | Tibetan Terrier Club of America
| |
| ** | TTCA | TN Technology Center at Athens
| |
| ** | TTCA | Technology, Trade and Commerce Agency
| |
| ** | TTCA | Transcutaneous transluminal coronary angioplastics
| |
| ** | TTCA | Thiazolidinethione 4 Carboxylic Acid
| |
| ** | TTCA | Thioxothiazolidine 4 Carboxylic Acid
| |