A National Biodiversity Conservation Area (NBCA) is an environmentally protected area in Laos. There are all together 21 different NBCAs in Laos, protecting 29,775 square kilometers.^[1] Another 10 NBCAs have been proposed, many of them being treated by authorities as though they were already officially protected.^[2]

• Corridor Nakai - Nam Theun and Phou Hin Poun National Biodiversity Conservation Area
• Dong Ampham National Biodiversity Conservation Area
• Dong Hua Sao National Protected Area
• Dong Phou Vieng National Protected Area
• Hin Nam No National Biodiversity Conservation Area
• Houei Nhang Conservation Area
• Khammouane Limestone National Biodiversity Conservation Area
• Nakai - Nam Theun National Biodiversity Conservation Area
• Nam Chuane Conservation Area
• Nam Et National Biodiversity Conservation Area
• Nam Ha National Protected Area
• Nam Kading National Protected Area
• Nam Kan
• Nam Phouy National Biodiversity Conservation Area
• Nam Theun Ext. National Biodiversity Conservation Area
• Nam Xam National Biodiversity Conservation Area
• Phou Den Din National Biodiversity Conservation Area
• Phou Kateup (Bolovens Northeast)
• Phou Kathong
• Phou Khao Khoay National Biodiversity Conservation Area
• Phou Louey National Biodiversity Conservation Area
• Phou Phanang National Biodiversity Conservation Area
• Phou Theung
• Phou Xang He National Protected Area
• Phou Xieng Thong National Protected Area
• Phu Luang (Boloven SW)
• Xe Bang Nouan National Biodiversity Conservation Area
• Xe Khampho
• Xe Pian National Protected Area
• Xe Xap National Biodiversity Conservation Area
• Xekhampo-Boloven Plateau Hunting Reserve

• Geography of Laos