Karl Keska (born 7 May 1972 in Wolverhampton) is an English long-distance runner who specializes in the 10,000 metres.
Keska competed collegiately for University of Oregon from 1992–1996, where he was an All-American (10,000 m) and three time PAC-10 Conference Champion (10,000 m in 1995, 1996, cross-country in 1995).
He was a two-time National Champion (AAAs) for Great Britain (5000 m 1998, 10,000 m 2003).
He was an Olympic finalist in the 10,000 m in the 2000 Sydney Games where he represented Great Britain.