Kim Kirchen (born July 3, 1978 in Luxembourg City) is a Luxembourg road racing cyclist currently riding with Team Columbia-High Road.

Kirchen signed as a professional cyclist in 2000 with De Nardi-Pasta Montegrappa, and went on to join Fassa Bortolo in 2001. For the 2006 cycling season, he joined the Team T-Mobile following the demise of the Fassa Bortolo team.

His first recorded race was in Dommeldange in 199, and he had to wait until 2000 for his first professional victory when he won the Piva Col trophy. Kirchen was named the Luxembourgian Sportsman of the Year in 2000, 2003, 2004, 2005 and 2007, surpassing the achievement of fellow cyclist Charly Gaul and putting him fourth in the all-time stakes.