There are no truly scientific published lists of the highest IQ measured. The measurements also vary by the tests that are used, and many tests have had their scales changed through history as people's average IQ tends to get higher and higher if you use the same test. Also, nobody collects the results of all tests ever taken.
Physicist Kim Ung-yong: verified 210. Bouncer Chris Langan, verified 195. Alleged: Phillip Emeagwall, Bobby Fischer, Steve Hawking, Benjamin Netanyahu, Paul Allen, John Sununu, Garry Kasparov, Marilyn Vos Savant