Štěpán Rak (born 8 August 1945) is a Rusyn, Ukraine-born Czech classical guitarist and composer. He is well known for the technical innovations that he uses in his compositions.
Rak first studied at a Fine Arts School in Prague and continued with guitar studies at the Prague Conservatory, 1965–70. During 1975 he also studied composition at the Prague Academy of Arts. In 1973, his orchestral composition Hiroshima won a second prize at a Czechoslovakian competition for young composers. From 1975 to 1980 he taught guitar at the Jyväskylä Conservatory in Finland.