The following is a list of ecoregions in Cambodia.^[1][2]

Tropical and subtropical moist broadleaf forests

• Southern Annamites montane rain forests (Cambodia, Laos, Vietnam)
• Cardamom Mountains rain forests (Cambodia, Thailand, Vietnam)
• Tonle Sap freshwater swamp forests (Cambodia, Vietnam)
• Tonle Sap-Mekong peat swamp forests (Cambodia, Vietnam)

Tropical and subtropical dry broadleaf forests

• Central Indochina dry forests (Laos, Cambodia, Thailand, Vietnam)
• Southeastern Indochina dry evergreen forests (Cambodia, Laos, Thailand, Vietnam)

Mangroves

• Indochina mangroves (Vietnam, Thailand, Cambodia)

Freshwater ecoregions

Freshwater ecoregions:

• Mekong (Burma, Laos, Cambodia, Thailand, Vietnam)