The Nakhon Phanom Royal Thai Navy Base (NKP), formerly Nakhon Phanom Royal Thai Air Force Base, is a Royal Thai Navy facility used for riverine patrols along the Mekong River. It is approximately 587 km (365 mi) northeast of Bangkok, 14.5 km (9.0 mi) west of Nakhon Phanom city in Nakhon Phanom Province in the northeastern region of Thailand, and 411 km (255 mi) from Hanoi in Vietnam. The Mekong River is NKP's border with Laos. The airfield at NKP is jointly used as a civilian airport.

The Royal Thai Navy is the naval warfare force of Thailand. Established in 1906, it was modernised by the Admiral Prince Abhakara Kiartiwongse (1880–1923) who is known as the father of the Royal Navy. It has a structure that includes the naval fleet, Royal Thai Marine Corps, and Air and Coastal Defence Command. The RTN headquarters is at Sattahip Naval Base.