| CTPA | California Travel and Park Association 
| Others |
| CTPA | Canberra Taxi Proprietors Association
| Others |
| CTPA | Caribbean Trade Partnership Act
| Others |
| CTPA | Cascade Team Penning Association
| Others |
| CTPA | Central Texas Purchasing Alliance
| Others |
| CTPA | Centre Technique des Productions Animales
| Others |
| CTPA | Centre Technologique des Produits Aquatiques
| Others |
| CTPA | Certified Transit Program Administrator
| Others |
| CTPA | Certified Treasury Professional Associate
| Others |
| CTPA | Colombia Trade Promotion Agreement
| Others |
| CTPA | Complex Task Performance Assessment
| Others |
| CTPA | Comprehensive Test of Psionic Aptitude
| Others |
| CTPA | Computed Tomographic Pulmonary Angiography
| Others |
| CTPA | Computed Tomography Pulmonary Angiography
| Others |
| CTPA | Computerised Tomography Pulmonary Angiogram
| Others |
| CTPA | Computerised tomography pulmonary angiography
| Others |
| CTPA | Connecticut Tree Protective Association
| Others |
| CTPA | Control Technology Professional Association
| Others |
| CTPA | Corporate Transfer Pricing Association
| Others |
| CTPA | Cosmetic Toiletry and Perfumery Association
| Others |
| CTPA | Cosmetics Toiletry and Perfumery Association
| Others |
| CTPA | CT pulmonary angiography
| Others |