Police are investigating after the grim discovery on Saturday evening at the DoubleTree by Hilton Hotel Edinburgh Airport.
Paramedics and police were called to the Hilton hotel, on Eastfield Road, at about 7.25pm on Saturday after the 29-year-old man was found in the pool.
A Police Scotland spokeswoman said: “Police in Edinburgh are investigating following the death of a 29-year-old man at a hotel in Eastfield Road.
“The incident happened at about 7.25pm on Saturday, May 27. Emergency services attended, however the man was sadly pronounced at the scene.”
The man is understood to have been found in the pool of the hotel’s health club. A post-mortem will try and find out whether he drowned or suffered a fatal illness.
It is understood the man was not staying at the hotel but was using the health facilities.
A spokesman for Double Tree Hilton Edinburgh Aiport said: ‘We can confirm that a male died after being found non responsive in the hotel swimming pool despite attempts to save him.
“We have been assisting the Police with their investigation and we send our deepest condolences to the victim’s family’’
The police spokeswoman added: “Inquiries are currently ongoing, however the death is being treated as non-suspicious. A report will be sent to the Procurator Fiscal.”
**Please note: An earlier version of this story had the incorrect age of the victim. This was due to information provided by Police Scotland. This has since been amended.**