Khammouane province

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Khammouane province ແຂວງ ຄໍາມ່ວນ
Province
Map of Khammouane province
Location of Khammouane province in Laos
Coordinates: 17°30′00″N 105°20′00″E / 17.5°N 105.333333°E / 17.5; 105.333333
Country	Laos
Capital	Thakhek
Area
• Total	16,315 km2 (6,299 sq mi)
Population  (2020 Census)
• Total	433,570
• Density	27/km2 (69/sq mi)
Time zone	UTC+7 (ICT)
ISO 3166 code	LA-KH
HDI (2017)	0.569[1] medium 10th

This article contains Lao text. Without proper rendering support, you may see question marks, boxes, or other symbols instead of Lao script.

Khammouane province (Khammouan) (Lao: ຄໍາມ່ວນ, pronounced [kʰám mūan]) is a province in the center of Laos. Its capital lies at Thakhek.

Khammouane province covers an area of 16,315 square kilometres (6,299 sq mi) and is mostly of forested mountainous terrain. Many streams flow through the province to join the Mekong River. The vast forests of the Nakai-Nam Theun National Park are an important watershed that feed many Mekong tributaries as well as form the catchment area for Nam Theun 2, the largest hydropower project in Laos. The Xe Bang Fai River, Nam Hinboun River, and the Nam Theun are the main rivers of the province.

Part of the aborted Thakhek-Tan Ap railway would have crossed the province to connect with the North-South Railway at Tân Ấp Railway Station, Quảng Bình province, Vietnam through Mụ Giạ Pass.