Keld Gantzhorn Knudsen (born 3 October 1954) is a Danish former footballer and manager.
[1][2] Gantzhorn played for Odense, and appeared for the team in the 1978–79 European Cup on 27 September 1978 against Bulgarian club Lokomotiv Sofia, which finished as a 1–2 away loss.
[3] He later began coaching, and was the manager of the Denmark women's national team from 1988 until 1996.
Under the leadership of Keld Gantzhorn, the team won a bronze medal during the European Championships in Denmark in 1991 by winning 2–1 over Italy in the match of 3–4.
He lives in the Dalum [da] district of Odense with his wife Rita, and has four children.