VADR stands for Voice And Data Recorder
VADR stands for Victorian Association for Dispute Resolution (est. 1986; Australia)
VADR stands for Vermont Advance Directive Registry (Department of Health; Vermont)
VADR stands for Variable Artificial Dielectric Retarder
VADR stands for Voice/Aircraft Data Recorder (avionics)
VADR stands for Vitamin A Depletion/Repletion