The highest IQ ever recorded was by Marilyn vos Savant with a total IQ score of 228. Kim Ung Yong is also a Korean former child prodigy who was also listed in the Guinness Book of Records with a score of 210.
1 Additional Answer
The highest IQ ever recorded to date is 210 and belongs to Guinness World Record Holder and Civil Engineer Kim Ung-Yong of Korea. Second is bouncer Christopher Michael Langan with 195.