Wilfred Kibet Kigen (born 23 February 1975) is a Kenyan long distance runner who primarily competes in marathon races in Germany. His personal best for the distance is 2:07:33 hours, set in 2007. He is a three-time winner of the Frankfurt Marathon and won the Hamburg Marathon in 2010, after having finished as runner-up on three occasions.
Hailing from Eldoret, Kenya, he had a childhood steeped in long-distance running – every day he would run 10 km to school as a child and his mother had been a successful athlete herself in the 1960s, winning prizes at track races in Uganda. Kigen was persuaded by Wilson Boit Kipketer (a world record holder in the steeplechase) to move to Ngong to focus on his running. It was through Boit Kipketer's suggestion that Kigen got his late start in competitive running at the age of 24.
Kigen started out as a 3000 metres steeplechase specialist, but changed to the marathon distance in 2004. That year he set a personal best of 2:11.52 for fifth place at the Hamburg Marathon, and also took fourth place at the 2004 Amsterdam Marathon. He improved his best time to 2:09:18 at the 2005 Hamburg Marathon to take second place behind Julio Rey Kigen had his first major victory in October that year as he knocked a second off the Frankfurt Marathon course record with a run of 2:08:29 (holding off challenges from his cousin Wilson Kigen and Jason Mbote in a quick finish).
He managed only fourth place at the 2006 Hamburg Marathon but went on to retain his title in Frankfurt. He took on both races again the following year and started well by running a personal best of 2:07:33 for second place in Hamburg behind Rodgers Rop. He became the first man to run sub-2:08 at the Frankfurt Marathon – challenged by the quick running of Hosea Rotich, Kigen opted to persevere with a strong even pace. The move paid dividends as he overtook Rotich in the final stages and was first past the post in a course record, earning him 45,000€ in prize money.