Goaziou first took office in 1994 and was re-elected three times as teasurer in 1998, 2000 and 2004, making him one of the longest-serving federation officers of the modern era.
He previously had been treasurer of the U.S. Youth Soccer Association and Florida Youth Soccer.
"All of us in the U.S. Soccer community have lost a great partner and a dear friend," said U.S. Soccer President Sunil Gulati. "From his work at the grassroots level to his tenure as one of the longest-serving board members in U.S. Soccer Federation history, Bill brought a passion and enthusiasm to his effort that has fueled the lifeblood of the sport in this country. Bill was a dedicated servant to soccer for more than a quarter century, and his experience, skill and commitment will be sorely missed. Our deepest sympathies go out to his wife, Janice, and daughters Jennifer and Michelle."
A Certified Public Accountant, Goaziou served as an adjunct professor at the University of South Florida and Hillsborough College.
Memorial services will be held on Saturday at 3 p.m. at the Ridgewood Lakes Club House in Davenport, Fla. In lieu of flowers, people can make donations in his name to the U.S. Soccer Foundation.