Karel Navrátil (24 April 1867 – 23 December 1936) was a Czech violinist, composer and music educator. He was born in Prague, and studied in Vienna under Guido Adler and František Ondříček, afterward working as a composer and music teacher in Prague. Notable students include composers Helen Hopekirk, Arthur Hinton and John Powell. See: List of music students by teacher: N to Q#Karel Navrátil. He died in Prague. Some sources have confused him with Karl Nawratil (1836-1914), attributing to him a substantial output of chamber music actually composed by the latter.