Joseph Aloys Schmittbaur (also Schmittbauer; 8 November 1718 - 24 October 1809) was a German composer, Kapellmeister, instrument maker and music teacher.
Joseph Aloys Schmittbaur was born in Bamberg and received his musical education from the organ builder of the Würzburg court Johann Philipp Seuffert.
He retired from his duties as Kapellmeister in 1804, leaving his place at the court to his son, Ludwig Joseph Abbe (1755-1829), a composer of Lieder.
"[1] Schmittbaur was in demand as an organ expert, he also produced replicas of the glass harmonica that Benjamin Franklin had invented in 1762 and improved on them, including one for one of his most famous pupils, the blind Marianne Kirchgessner.
Among his instrumental compositions, most noted are his chamber works, such as the six quartets for flute and strings, which in the past were erroneously attributed to Joseph Haydn.