PRK

PRK could refer to:

Phase Reversal Keying, see BPSK
Photorefractive keratectomy, a laser eye surgery procedure
ISO 3166-1 alpha-3 code, International Olympic Committee country code, and FIFA country code for North Korea
Port Kent (Amtrak station), New York, United States; Amtrak station code PRK
People's Republic of Kampuchea, the state that ruled Cambodia after the Vietnamese invasion that defeated the Khmer Rouge.
People's Republic of Kalifornia, a pejorative term referring to California's political environment.

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