- DTRA stands for Defense Threat Reduction Agency
- DTRA stands for Dirt Track Racing Association
- DTRA stands for Deseret Towers Recreation Area (Utah)
- DTRA stands for Data Terminal Ready A
- DTRA stands for Defense Technical Review Activity
- DTRA stands for Defense Technical Review Agency
- DTRA stands for Design Trade Resource Association
- DTRA stands for Dumbreck Tenants and Residents Association (UK)
- DTRA stands for Down The Road Analysis (show)
- DTRA stands for Direttore Tecnico Regionale Aerobica
- DTRA stands for Dielectric Tapered Rod Antenna
DTRA