| Acronym | Definition |
|---|
| DTCA | Direct-To-Consumer Advertising |
| DTCA | Diphtérie, le Tétanos et la Coqueluche Acellulaire (French: Diphtheria, Tetanus and Acellular Pertussis) |
| DTCA | Dutch Tax and Customs Administration (Netherlands) |
| DTCA | Diabetes Treatment Centers of America (diabetes treatment network; various locations; now American Healthways) |
| DTCA | Digital Temperature Control Amplifier (various companies) |
| DTCA | D Trust Certifikacna Autorita (Slovak: D Trust Certification Authority) |
| DTCA | Defect-Tolerant Computer Architecture |
| DTCA | Dwell-Time Code Acquisition |