RDR

RDR is a three-letter acronym that may refer to:

* Rassemblement démocratique pour la République, a French political party
* Rassemblement Démocratique pour la République, a political party in the Democratic Republic of the Congo
* Rassemblement Démocratique pour le Rwanda, also known as "Rassemblement Démocratique pour la Retour", an insurgent group in Rwanda
* Rassemblement des Républicains, a political party in Côte d'Ivoire
* Registered Diplomate Reporter, a certification offered by the National Court Reporters Association
* Restrictive Design Rules, a way for a semiconductor fab to ensure acceptable yield on its most advanced integrated circuits
* Ripple down rules, a knowledge acquisition methodology
* Royal Deeside Railway, a heritage railway in Scotland
* Royal Durban Rifles, now the Durban Light Infantry
* Grand Forks Air Force Base with IATA code "RDR"
* Radyr railway station with National Rail code "RDR"
* Rho Delta Rho, a social organization in the Philippines