• August Friedrich Oelenhainz was a German painter.
• Oelenhainz's father was a preacher.
• He studied under his uncle Wolfgang Dietrich Mayr in Tübingen, and then later at the art school in Stuttgart with the Württemberg court painter Johann Wilhelm Beyer.
• In 1766 he studied at the Academy of Fine Arts Vienna.
• Oelenhainz moved to Vienna, where in the imperial court he rapidly became a popular painter.
• He primarily painted portraits.
• From 1790-1792 he worked in Zurich and Bern.
• From 1800-1801 he lived in Stuttgart and Ulm.
• In 1803 he traveled to Paris and on the way home died unexpectedly in 1804.
• Oelenhainz was never married.
• The painter Susette Hirzel studied briefly with Oelenhainz.