QDR

QDR may refer to:

Science and technology

 * QDR, a Q code request for heading (bearing)
 * Quad data rate, a communication signaling technique
 * InfiniBand, a computer network communications link used in high-performance computing
 * Quad Data Rate SRAM, a type of computer memory that transfers data using QDR

Other uses

 * Quadrennial Defense Review, a former four-yearly review of US military objectives
 * Qatar Domain Registry, the operator of the .qa ccTLD
 * WQDR-FM, a US radio station
 * Queda de Rins (literally "fall on the kidneys"), in the list of capoeira techniques