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