Tiffany Marie Roberts Sahaydak (born May 5, 1977), née Tiffany Marie Roberts, is an American soccer coach, former defender, and Olympic gold medalist. She was also a member of the 1999 U.S. national team that won the 1999 FIFA Women's World Cup. She became the 16th player in U.S. history to play over 100 matches for her country and was a founding member of the WUSA, the first women's professional soccer league in the United States.