I initially assumed Tony Stark had the highest IQ, but then I remembered Reed Richards - "Smartest Man Alive apparently". Then I read somewhere its Reed's son Franklin.
Anyways people on Stack Exchange obviously have more knowledge about this so, - So who has the highest specified IQ in the Marvel Universe??"
To perhaps make this question answerable, let's limit the character to human only)
Kindly specify the IQ if possible and will prefer canon answers.