Khao Lak (เขาหลัก) is a resort beach in Thailand, located 80 km north of Phuket International Airport in Takua Pa district, Phang Nga province and popular as a departure point for liveaboard scuba diving trips to the Similan Islands.

The pristine coastline is synonymous with beauty. Nearby rubber and palm plantations dot the coastal region and most nearby inland areas. The major national Highway 4 runs north and south and mostly parallel to the coastline. Khao Lak is a thriving tourist destination for backpackers, up-scale tourists, adventure tourists and seasoned scuba enthusiasts. Local peoples are mostly Thai often with some Chinese ancestry. The diversity of ethnic groups and cultural influences within and surrounding Khao Lak makes this region rich in agricultural, fishing and dry good products. Tourism is Khao Lak's revenue generating entity, becoming Thialand's most popular jumping-off point for the world renowned Similan Islands.