Franz Xaver Gerl ((1764-11-30)30 November 1764 – (1827-03-09)9 March 1827) was a bass singer and composer of the classical era.
He sang as a chorister as a child in Salzburg; the New Grove asserts that he was probably the pupil of Leopold Mozart.
Gerl participated in a system of joint composition used by Schikaneder's troupe, in which Singspiele were produced rapidly by having several composers collaborate.
[1] Gerl may have been a participant in a rehearsal of Mozart's Requiem on the day before the composer died; for details see Benedikt Schack.
She also sang in the Schikaneder troupe, and performed the role of Papagena at the Magic Flute premiere.