Terry Bradshaw
Lynn Swann
Joe Greene
Roberto Clemente
Honus Wagner
Bill Mazeroski
Mario Lemieux
Sidney Crosby (Does the Canadian count?)
Utah is not popular in sports... John Stockton.
Steve Prefontaine
Troy Aikman
Brett Favre
Darryl Sittler
Michael Vick
Perhaps the best known Iowan in sports history was Bob Feller.
georges st. Pierre
John Madden does he count?
Brian Urlacher
I would have to say Micheal Jordan.
Back in the day: Hakeem Olajuwon.