KKR

KKR may refer to:


 * Kohlberg Kravis Roberts, a global investment firm
 * Kolkata Knight Riders, an Indian Premier League franchise
 * Rheinsberg Nuclear Power Plant (Kernkraftwerk Rheinsberg), first nuclear power plant in the former East Germany
 * Kir-Balar language, an Afro-Asiatic language
 * Korringa–Kohn–Rostoker method, a method used in electronic band structure calculations