NKP

NKP may refer to:

• The abbreviation and identifying marks of the Nickel Plate Road
• NetKernel Protocol
• New Korea Party, a political party in South Korea
• New Komeito Party, a Japanese political party
• New York, Chicago and St. Louis Railroad, the Nickel Plate Road
• Communist Party of Norway (Norges Kommunistiske Parti)
• Nakhon Phanom Royal Thai Air Force Base, which was used by the United States Pacific Air Forces during the Vietnam War
• Nitrogen, Potassium, and Phosphorus, three essential plant nutrients.