KDR

• Kandrian Airport, Papua New Guinea (IATA:KDR)
• Radioplane KDR Quail, a 1940s target drone

• Kappa Delta Rho, an American college fraternity
• Coalition for the Republic, a defunct Polish political party

• 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

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