Elizabeth Smart married Matthew Gilmour on Saturday in Hawaii, her spokesperson confirms.
People was first to report the news.
Smart became known worldwide when she was abducted in 2002 at age 14 and held captive for nine months by Brian David Mitchell and Wanda Barzee.
She met Gilmour while both were doing Mormon missionary work.
The couple revealed their engagement last month, and had originally planned a summer wedding before moving up the big day.
They plan to live in Salt Lake City.