Frederik Franck Winther (born 4 January 2001) is a Danish professional footballer who plays as a centre-back for Portuguese Primeira Liga club Estoril on loan from Bundesliga club Augsburg.
A defender, Winther began his career with B 1903 in 2007 at age 6. He progressed through the club's academy to the under-13 team before making the move to the Lyngby BK youth team in 2014.