Jiří Gemrot (born 15 April 1957 in Prague) is a Czech composer, radio executive, and a record producer.
As a composer, his music has been performed by all of the Czech Republic's major orchestras.
Gemrot studied at the Prague Conservatory from 1972–1976 where he was a pupil of Ema Doležalová and Jan Zdeněk Bartoš.
He then entered the Academy of Performing Arts in Prague where he studied under Jiří Pauer through 1981.
His best known composition internationally is his work for chorus and orchestra Psalm 146 (1992).