The 1999 Mr. Olympia contest was an IFBB professional bodybuilding competition held October 21–24, 1999 at the Mandalay Bay Arena in Las Vegas, Nevada.
The total prize money awarded was $311,000.
Ronnie Coleman won his second consecutive Mr. Olympia title.
Markus Ruhl placed positive for diuretics and was disqualified.
Porter Cottrell withdrew from the contest due to an firefighting accident that occurred a few weeks earlier.
Mr Olympia 1999 results