Rasmus Henning (born 13 November 1975, in Copenhagen) is an athlete from Denmark, who competes in triathlon.

He competed in the 2008 Summer Olympics as well, placing eighth in the triathlon competition with a time of 1:49:57.47.

[4] Henning retired from triathlon as a professional in 2012 following the 2012 Ironman World Championship.

He continues to participate in endurance sports and runs a company called Tri Nordic.

This biographical article related to a Danish known for competing in triathlons is a stub.