NTTA
| Acronym | Definition |
|---|---|
| NTTA | North Texas Tollway Authority |
| NTTA | National Trailer and Towing Association (Barford, England, UK) |
| NTTA | National Technical Training Authority (est. 1999; Bhutan) |
| NTTA | Network Termination and Testing Apparatus (telecommunications) |
| NTTA | National Table Tennis Association |