UDR
# UDR

UDR may refer to:

* Ulster Defence Regiment, a former British Army infantry regiment
* Universal dielectric response, An emergent scaling behaviour in heterogeneous materials under alternating current
* União Democrática Ruralista, a Brazilian right-wing association of farmers
* Union of Democrats for the Republic, a former political party in France
* Union for Democracy and the Republic (Chad), a political party in Chad
* Democratic Union for the Republic, a former political party in Italy
* UDR, Inc., a real estate company in the United States
* Udaipur Airport, Indian airport (IATA airport code)
* Untethered dead reckoning, GNSS-assisted dead reckoning without external sensors
* User-Defined Reductions in OpenMP
* U.D.R., Brazilian comedy rock band.
* Univision Deportes Radio, a Spanish language sports radio network in the United States.
