Ko Lan is one of the eastern seaboard islands of Thailand. Ko Lan lies 7.5 km from the nearest shore, Pattaya. "Ko Lan" is the name of the island in the Royal Thai General System of Transcription. It is also known as "Koh Larn". Ko Lan is the largest of the "near islands", off south Pattaya. It is at the southeast end of the Bay of Bangkok, on the east side of the Gulf of Siam. Administratively Ko Lan belongs to the Amphoe Bang Lamung,Chonburi Province