Felix Petyrek (14 May 1892 in Brno – 1 December 1951 in Vienna) was an Austrian composer.
He wrote stage works, songs, piano music (including duos and duets) in a Romantic style.
Petyrek was a pupil of Franz Schreker and Guido Adler in Vienna.
Together with Bernhard Paumgartner, he worked at the center of music history at the Imperial War Ministry.
After Petyrek had lived for health reasons three years in Abbazia, he went in 1926 to the Athens Conservatoire, where he led the master class for piano and also worked as a lecturer of musicology.