Kostylev (, from костыль meaning crutch) is a Russian masculine surname, its feminine counterpart is Kostyleva. It may refer to Aleksei Kostylev (1914–1989), Russian football player Elena Kostyleva (born 2011), Russian figure skater Gennadi Kostylev (born 1940), Russian football coach and a former player Leonid Kostylev (born 1989), Russian boxer Nikolay Kostylev (1938–1993), Russian weightlifter Artem Kostylev (born 1995), Software developer Nikolay Kostylev (born 1995), musician and producer. Member of Russian group IC3PEAK