Theodor Hörmann von Hörbach (13 December 1840, in Imst – 1 July 1895, in Graz) was an Austrian landscape painter.

He began his career in the Austrian Army and served during the Second Italian War of Independence (known as the Sardinian War in Austria), followed by service in the Austro-Prussian War. He reached the rank of Oberleutnant.^{[citation needed]}

From 1873 to 1875, he studied at the Academy of Fine Arts, Vienna, with Eduard Peithner von Lichtenfels and Anselm Feuerbach. After that, he taught drawing and fencing at the Military Realschule in Sankt Pölten.^{[citation needed]}

In 1884, he got married and retired from military service. He undertook several study trips and lived in Paris from 1886 to 1890, where he came under the influence of Impressionism. From 1890 to 1893, he lived in Znaim, then settled in Vienna, becoming a member of the Künstlerhaus.^{[citation needed]}

He died in Graz while returning from a trip to Italy and was buried in the Vienna Central Cemetery.^[1]

• "Hörmann von Hörbach Theodor". In: Österreichisches Biographisches Lexikon 1815–1950 (ÖBL). Vol. 2, Austrian Academy of Sciences, Vienna 1959, p. 367.

• Hörmann-Ausstellung. Werke aus dem Nachlasse des Künstlers, Catalog of the Genossenschaft der bildenden Künstler Wiens, Vienna 1895
• Theo Braunegger: Theodor von Hörmann 1840–1895. Österreichischer Landschaftsmaler. Phil. Diss., University of Innsbruck 1970
• Theo Braunegger/Magdalena Hörmann-Weingartner: Theodor von Hörmann 1840–1895, Editions Tusch, 1979 ISBN 978-3-85063-100-6
• Theodor von Hörmann 1840–1895, Catalog, Tiroler Landesmuseum Ferdinandeum, Innsbruck 1995
• Marianne Hussl-Hörmann: Theodor von Hörmann (1840–1895). Monographie mit Verzeichnis der Gemälde, with contributions by Mathias Boeckl, Manfried Rauchensteiner and Marianne Rauchensteiner, Im Kinsky Editions, 2013 ISBN 978-3-85033-730-4

• Works by or about Theodor von Hörmann at the Internet Archive
• Literature by and about Theodor von Hörmann in the German National Library catalogue
• Entry about Theodor von Hörmann in the database Gedächtnis des Landes on the history of the state of Lower Austria (Lower Austria Museum)
• ArtNet: More works by Von Hörmann.
• Theodor von Hörmann website, Biography, references and works