TDR may refer to:

Science and technology Interstate TDR, WWII US Navy aerial drone Telecommunications for Disaster Relief, a proposed standard Time-domain reflectometry, a measuring method Time-domain reflectometer

Medicine Radiolabeled thymidine (TdR)

Groups and organizations The Designers Republic, a former graphic design studio in England Tony D'Alberto Racing, an Australian motor-racing team

Other TDR (journal), The Drama Review Tokyo Disney Resort, Japan Timeout Detection and Recovery, Microsoft Windows video driver technique Transferable development rights, a method for controlling land use Troubled debt restructuring

See also