Police identified the man but The Phuket News is withholding the man’s names until it has been confirmed that his family have been notified.
Lt Chanat Hongsitthichaikul of Chalong Police, along with forensic police and rescue workers, arrived at the scene to find the man's body lying face up on a bed in a room on the second floor at a two-storey house in Soi Khokyang in Rawai.
The man had a deep cut on his left wrist and there was a substantial amount of blood on the floor. A green knife was found at the scene.
Rescue workers transported the man’s body to Vachira Phuket Hospital for further examination.
Although the death appears to be a suicide, police said they are continuing their investigation.
The police did not say whether the man's family or the French Embassy had been notified of his death.