Christian Sigsgaard Petersen (born 14 March 1997) is a Danish tennis player. He has a career-high ATP singles ranking of world No. 501 achieved on 18 August 2025. He is currently the No. 4 Danish player.
Playing for Denmark in Davis Cup, Sigsgaard has a winâÂÂloss record of 2âÂÂ1.
He won his first professional title at the ITF M25 Glasgow in October 2024, defeating Anton Matusevich in the final.