Christian Belz (born 11 September 1974) is a Swiss long-distance runner. He was initially a steeplechaser and represented Switzerland in the event at the World Championships in Athletics in 1999 and 2001 as well as the 2000 Summer Olympics. He broke the national record with a run of 8:22.24 in June 2001. Later that year he won two bronze medals at the 2001 Summer Universiade. A switch to road running was hindered by injury throughout 2007 to 2009. He made his final major appearance at the 2010 European Athletics Championships and announced his international retirement at the end of that year.