Phu Sang National Park
อุทยานแห่งชาติภูซาง
IUCN category II (national park)
The water of Namtok Phu Sang comes from a hot spring with water temperatures around 33-35°C
Location within Thailand
Location	Chiang Rai and Phayao Provinces
Coordinates	19°32′N 100°27′E / 19.53°N 100.45°E / 19.53; 100.45[1]
Area	285 km2 (110 sq mi)
Established	2000
Visitors	111,009 (in 2019)
Governing body	Department of National Parks, Wildlife and Plant Conservation

Phu Sang National Park (Thai: อุทยานแห่งชาติภูซาง) is a national park in Northern Thailand.

It covers the Thoeng District of Chiang Rai Province and Chiang Kham and Phu Sang Districts of Phayao Province.

Phu Sang National Park, with an area of 178,049 rai ~ 285 square kilometres (110 sq mi)^[2] is located in one of the north-easternmost mountain chains of the Phi Pan Nam Range bordering Laos.^[3] The sources of many rivers are in these mountains. The park also has caves with stalactites and stalagmites and a warm water waterfall, Namtok Wang Kaew.^[4]

Trees in the protected area include Dipterocarpus obtusifolius, Dipterocarpus alatus, Dipterocarpus turbinatus, Lagerstroemia loudonii, Lagerstroemia calyculata, Lagerstroemia tomentosa, Anisoptera costata, Michelia floribunda, Artocarpus lacucha, Pterocarpus macrocarpus, Afzelia xylocarpa, Xylia xylocarpa, Terminalia bellirica, Tectona grandis, Dillenia pentagyna, Schleichera oleosa, Lithocarpus densiflorus and Irvingia malayana.

Animals in the park area include the Indian muntjac, the Burmese hare, the Indochinese flying squirrel, black giant squirrel, the Java mouse-deer and the jungle cat.

Phu Sang National Park in overview PARO 15 (Chiang Rai)

National park   1 Doi Luang   2 Doi Phu Nang   3 Khun Chae   4 Lam Nam Kok   5 Mae Puem   6 Phu Chi Fa   7 Phu Sang   8 Tham Luang– Khun Nam Nang Non       Wildlife sanctuary   9 Doi Pha Chang 10 Wiang Lo   Non-hunting area 11 Chiang Saen 12 Doi Insi 13 Don Sila 14 Khun Nam Yom 15 Mae Chan 16 Mae Tho 17 Nong Bong Khai 18 Nong Leng Sai 19 Thap Phaya Lo 20 Wiang Chiang Rung 21 Wiang Thoeng   Forest park 22 Doi Hua Mae Kham 23 Huai Nam Chang 24 Huai Sai Man 25 Namtok Huai Mae Sak 26 Namtok Huai Tat Thong 27 Namtok Khun Nam Yab 28 Namtok Mae Salong 29 Namtok Nam Min 30 Namtok Si Chomphu 31 Namtok Tat Khwan 32 Namtok Tat Sairung 33 Namtok Tat Sawan 34 Namtok Wang Than Thong 35 Phaya Phiphak 36 Rong Kham Luang 37 San Pha Phaya Phrai 38 Tham Pha Lae

• List of national parks of Thailand
• List of Protected Areas Regional Offices of Thailand

• Phu Sang National Park - Thaiforestbooking
• Namtok Phu Sang National Park - Tourism Thailand^{[permanent dead link‍]}