Benedict Anton Aufschnaiter (baptised 21 February 1665, Kitzbühel – buried 24 January 1742, Passau) was an Austrian Baroque composer.
Aufschnaiter received much of his musical education in Vienna, where he lived for several years.
On 16 January 1705, he was appointed Kapellmeister at the Passau court by Bishop-Cardinal Johann Philipp von Lamberg as a successor to Georg Muffat.
Most of Aufschnaiter's 300 surviving works are sacred.
In his Regulæ Fundamentales Musurgiæ, he named Giacomo Carissimi, Orlande de Lassus, Johann Kaspar Kerll and Adam Gumpelzhaimer as his idols.