Christian Constantin (born 7 January 1957) is a Swiss architect. He is the owner and president of Swiss football club FC Sion. He bought the club, which had previously neared bankruptcy and was relegated from the Swiss Super League, in 2003. Constantin was formerly a goalkeeper who played for Neuchâtel Xamax (1977–1979), FC Lugano (1979–1980), FC Monthey (1981–1982) and FC Martigny-Sports (1983–1984). On 12 October 2017, Constantin was given a 14-month ban for striking former Switzerland coach Rolf Fringer.