András Szőllősy (Hungarian: [ˈɒndraːʃ ˈsøːlløːʃi]; 27 February 1921 in Orăştie – 6 December 2007 in Budapest) was a Hungarian composer and musicologist; as the latter, known for the Szőllősy index (abbreviated "Sz.
He won numerous prizes and awards for his own compositions, including Distinguished Composition of the Year 1970 at UNESCO's International Rostrum of Composers in Paris for Concerto No.
In 1985 he won the Kossuth Prize – the highest official recognition of the Hungarian state – and in 1987 he was proclaimed Commandeur of the Ordre des Arts et des Lettres by the French government.
Szöllősy's musicological writings include books on Bartók, Kodály, and Arthur Honegger.
The Szőllősy index includes all of Bartók's compositions as well as his musicological writings.