Andreas Xaverius Stütz (22 August 1747 – 12 February 1806) was an Austrian Augustinian abbott and mineralogist.
After the monastery was abolished in 1782, he began to teach at the royal realakademie and in 1788 he was appointed to the Imperial cabinet of natural history replacing Karl Haidinger who moved to the mining academy at Schemnitz.
When the collections were unified as the "Vereinigte Naturalien-, Physikalisches und Astronomisches Cabinet" (United Natural History, Physical and Astronomic Cabinet) he became director of the natural history collections alongside Ludwig Balthasar Ritter von Baillou (1758-1802).
He held his position until his death and was succeeded by Carl Franz Anton Ritter von Schreibers (1775-1852).
He described two iron meteorites that "allegedly" fell at Agram in Croatia in 1751 and suggested that they were created by lightning strike on stones.