KDR may refer to:
Aviation Kandrian Airport, Papua New Guinea (IATA:KDR) Radioplane KDR Quail, a 1940s target drone
Organisations Kappa Delta Rho, an American college fraternity Coalition for the Republic, a defunct Polish political party
Other uses Karaim language, spoken in the Baltic (ISO 639:kdr) Kinase insert domain receptor, a human protein Kort Distanse Radio, in Scandinavia Kill-death ratio, a gaming statistic