Kjetil Mårdalen (12 January 1925 – 4 November 1996) was a Norwegian nordic combined skier who competed in the 1950s.

He won a bronze medal in the individual event at the 1954 FIS Nordic World Ski Championships in Falun.

Mårdalen finished 14th in the individual event at the 1956 Winter Olympics in Cortina d'Ampezzo.

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