PRK

PRK can refer to:


 * North Korea's ISO 3166-1 alpha-3 code
 * Photorefractive keratectomy, laser eye surgery
 * Phase reversal keying, a form of phase-shift keying
 * People's Republic of Korea, short-lived 1945 government
 * People's Republic of Kampuchea, 1979-1989
 * Port Kent (Amtrak station), New York, US station code
 * Phosphoribulokinase, an enzyme
 * Puneeth Rajkumar, an Indian Kannada-language film actor