- ADR stands for Alternative Dispute Resolution
- ADR stands for Address
- ADR stands for Australian Design Rules (vehicle safety standards)
- ADR stands for Adverse Drug Reaction
- ADR stands for Average Daily Rate
- ADR stands for American Depository Receipt (common but incorrect; it’s depositary)
- ADR stands for American Depositary Receipt (financial)
- ADR stands for Administrative Dispute Resolution (Act of 1995)
- ADR stands for Amicable Dispute Resolution
- ADR stands for Accord Européen Relatif au Transport International des Marchandises Dangereuses par Route (French: European Agreement Concerning the International Carriage of Dangerous Goods by Road; EU)
- ADR stands for Aeroporti Di Roma (Italian Society)