Nakhon Nayok province

Nakhon Nayok
นครนายก
(clockwise from upper-left): Wat Udom Thani, Luang Pho Pak Daeng Buddha at Wat Phrammani, Bamboo Forest of Wat Chulaphonwanaram, Buddharupa Shrine of Srinakharinwirot University’s Ongkharak Campus, Khun Dan Prakan Chon Dam
Mottoes: 
นครนายก เมืองในฝันที่ใกล้กรุง ภูเขางาม น้ำตกสวย รวยธรรมชาติ ปราศจากมลพิษ
("Nakhon Nayok. City of dreams near the capital. Beautiful mountains. Gorgeous waterfalls. Rich in nature. Free of pollution.")
Map of Thailand highlighting Nakhon Nayok province
CountryThailand
CapitalNakhon Nayok City
Government
 • GovernorChanon Vasiksiri
 • PAO Chief ExecutiveNida Yaynangam
Area
 • Total
2,141 km2 (827 sq mi)
 • Rank67th
Population
 (2024)
 • Total
259,770
 • Rank73rd
 • Density121/km2 (310/sq mi)
  • Rank39th
Human Achievement Index
 • HAI (2022)0.6509 "somewhat high"
Ranked 25th
GDP
 • Totalbaht 27 billion
(US$1.0 billion) (2019)
Time zoneUTC+7 (ICT)
Postal code
26xxx
Calling code037
ISO 3166 codeTH-26
Websitenakhonnayok.go.th

Nakhon Nayok (Thai: นครนายก, pronounced [ná(ʔ).kʰɔ̄ːn nāː.jók]) is one of the central provinces (changwat) of Thailand, established by the Act Establishing Changwat Samut Prakan, Changwat Nonthaburi, Changwat Samut Sakhon, and Changwat Nakhon Nayok, Buddhist Era 2489 (1946), which came into force on 9 May 1946.

Neighboring provinces are (from north clockwise) Saraburi, Nakhon Ratchasima, Prachinburi, Chachoengsao, and Pathum Thani. Nakhon Nayok is known for waterfalls and fruit varieties.

Nakon Nayok is a nearby province to Bangkok and has various tourist attractions. Khao Yai National Park, Thailands oldest national park is in partly in Nakhon Nayok province and attracts many tourists. Khun Dan Prakarn Chon Dam is another tourist attraction 2 hours outside of Bangkok in Nakhon Nayok.