LDR

LDR may refer to:

• European Liberal Democrat and Reform Party (European Parliament group), abbreviated as LDR from 1985 to 1994
• Labor and delivery room, rooms in hospitals used for childbirth
• Lana Del Rey, an American singer-songwriter
• Lateral digit reduction, a concept in paleontology to explain the wing formation in birds; see Origin of birds#Digit homology
• Laval-des-Rapides, a borough in Laval, Quebec, Canada
• .ldr, the file extension for LDraw 3D modeling software
• Lecture and dissertation room, a large room used for instruction, typically at a college or university
• Light dependent resistor or photoresistor, an electronic component
• Lift-to-drag ratio, in aerodynamics
• Long-distance relationship, an intimate relationship that takes place when the partners are separated by a considerable distance
• Low dynamic range rendering, a term used in 3D computer graphics rendering; compare with high dynamic range rendering