The following is a list of Cambodia's islands, all situated in the Gulf of Thailand (Khmer: ឈូងសមុទ្រថៃ, Chhungsâmŭtr Thai). All islands are, apart from the group of the outer islands, in relative proximity to the coast and can easily and quickly be reached. The north-westernmost islands near and around the Koh Kong river (Khmer: Prek Kaoh Pao) delta area are to a great extent engulfed in contiguous mangrove marshes and consequently hard to recognize.

Almost all islands have more than one name and there are islands sharing names (e.g. 2 x Koh Moul, 2 x Koh Domloung). Ancient Malay and French colonial names are still being used and/or have merged with Khmer names. Individual and unstandardized Romanization of Khmer writing has resulted in multiple spelling variants of the island's names. Sources, such as Geonames offer several variants. Tables below follow the geography from north-west to south-east.^[1][2][3]

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

• Sihanoukville (city)
• List of Cambodian inland islands
• List of islands
• Gulf of Thailand
• Geography of Cambodia