Peter Thumb (18 December 1681 – 4 March 1766) was an Austrian architect and master builder whose family came from Bezau, Vorarlberg, in the westernmost part of Austria.
Thumb created solid architecture, in combination with Joseph Anton Feuchtmayer's playful figurative decoration and Gottfried Bernhard Göz's ceiling frescoes.
With its majestic, picturesque location on Lake Constance, Birnau is one of the main sights on the Upper Swabian Baroque Route (Oberschwäbische Barockstraße).
The east facade and other parts of the monastery church in St. Gall were built by Johann Michael Beer von Bildstein, presumably according to designs by Peter Thumb.
Streets have been named after Thumb in Freiburg im Breisgau, in St. Peter (Hochschwarzwald), in Friedenweiler, in Rust (Baden), in Waldkirch, in Cologne,[1] Konstanz, Hilzingen, Singen (Hohentwiel), Waldshut-Tiengen, Weingarten (Württemberg), and Bregenz.