Gerald Franz Preinfalk (9 June 1971 in Freistadt, Austria) is an Austrian jazz and classical saxophonist and clarinetist.

In 1990 he began the instrumental studies at the Universität für Musik und darstellende Kunst Wien with Otto Vhrovnik and Wolfgang Puschnig.

Bernhard Lang wrote a solo concert with the Vienna Symphony Orchestra for Preinfalk, in addition to chamber music by Roland Freisitzer (2011) and Norbert Sterk (2008) composed for him.

[2] In the jazz genre, he has played with Django Bates, Peter Madsen, Don Byron, Terry Bozzio, Alex Machacek, Georg Breinschmid, Harri Stojka, the "Flip Philipp - Ed Partyka Dectet" and the "Yodelgroup" of Christian Muthspiel.

For the Wiener Volkstheater he wrote the music to "Peer Gynt", "Job" and "You stay with me", each directed by Michael Sturminger.