Antonio Maria Nicolao Beduzzi (1675 – 4 March 1735) was an Italian theater engineer, painter, and architect who flourished in Vienna at the turn of the 17th century.^[1]

He was born in Bologna in 1675. He succeeded Burnacini as the theatre architect at the Court in Vienna in 1708. Among his better known designs are:

• The interior of Melk Abbey for Jakob Prandtauer's baroque reconstruction
• Leopoldsberg church on Leopoldsberg above Klosterneuburg, near Vienna
• The cathedral museum of Passau
• Vienna's Theater am Kärntnertor (the site now occupied by Hotel Sacher)
• The frescos of the Landhaussaal in the Viennese Palais Niederösterreich
• The Dreifaltigkeitssäule [de] in Linz.^[2]

Beduzzi died in Vienna in 1735.

• Glorification of Saint Joseph, ceiling fresco in the nave of Maria Taferl Basilica
• Life and Assumption of Mary
• Presentation of Christ in the Temple
• Apotheosis of Saint Joseph
• Flight into Egypt
• Coronation of Mary
• The Immaculate Mary
• Angels with Veil of Veronica and Crown of Thorns
• Ascension of Joseph to Heaven
• Corporeal Ascension of Mary into Heaven