Samuel Kiplimo Kosgei (born January 20, 1986) is a Ugandan-born American long-distance runner who specializes in road running competitions. One of his first international competitions was the Outer Banks Half Marathon in 2007, where he finished first in 1:02:34. The following year he ran at the 2008 World's Best 10K in Puerto Rico where he recorded a time of 28:13 for sixth place. He finished second at the Reims Marathon later that year. He returned to Puerto Rico in 2009 and improved upon his past performance, running a personal best of 27:49 for fourth place behind Wilson Kipsang.