Koh Rong (Khmer: កោះរុង, also romanized as Kaôh Rōng or Kos Rong), is the second largest island of Cambodia.
Located in Koh Kong Province about 25 kilometers off the Sihanoukville's coast in the Gulf of Thailand, the island has an area of approximately 78 km2 and 43 km of beaches. Currently, there are four small villages: Koh Tuich, Dam Dkeuw, Prek Svay and Soksan. The island is also home to more than a dozen guesthouses and bungalows, many of them foreign-owned.
The island is part of the Koh Rong archipelago, a string of islands in the Gulf of Thailand. Like most of its neighboring islands, Koh Rong has had a land concession granted by the Cambodian government. The Royal Group has been granted a 99-year lease and has plans to build "Asia’s first environmentally planned resort island."
The latest season of the French "Survivor" television program Koh Lanta was filmed on Koh Rong, near Soksan village.