Khao Laem Ya - Mu Ko Samet National Park is a national park along the coast in Rayong, Thailand. It is about 180 kilometers from Bangkok.
Khao Laem Ya - Mu Ko Samet National Park was designated by the Royal Forest Department of Thailand on 1 October, 1981. The gazetting covers the Ko Samet archipelago, nine other small islands, the headland of Khao Laem Ya, and 11 kilometers of coastline of Mae Rampeung Beach.
Khao Laem Ya - Mu Ko Samet National Park is now a protected area under the National Parks division of Thailand.