Police were notified after the body was found by beachgoers at the tourist-popular Klong Dao Beach at the northern end of the island this morning.
Police arrived with rescue workers to find the body of the man lying face down on the beach.
The man, shirtless and bald, was dressed in long jeans with the number 96 emblazoned on back right pocket on right thigh, and a belt with Chinese writing on it.
The man also had a yellow rubber band on his left wrist with Chinese writing on it.
“We found no injury on the body and no identification on him,” Maj Somchai Nuwnmai of the Koh Lanta Police.
“We will check with other police stations to see if anyone has filed for a missing person report that matches the description of the unidentified body,” he added.
Police believe the man had been dead for at least two days before his body was discovered today.
“We believe the man died in another area and was brought to this area by waves,” Maj Somchai added.
“There are many possibilities as to what caused this man’s death. He may have fallen off a boat or drowned while swimming,” he said..
“The body was taken to Koh Lanta Hospital for doctors to determine the time and cause of death,” Maj Somchai concluded.