Karel Pešek (born 2 August 1992) is a Czech motorcycle racer. He races in the Alpe Adria Road Racing Superstock 1000 Championship aboard a Kawasaki ZX-10R. He has previously competed in the Alpe Adria Superstock 600 Championship, the FIM Superstock 1000 Championship and the European Superstock 600 Championship. He won the Czech 125cc Championship in 2008 and the Czech Superstock 600 Championship in 2011. His brother, Lukáš Pešek, is also a motorcycle racer.