Philipp Jakob Riotte (16 August 1776 – 1856) was a German composer who lived primarily in Vienna.
In Offenbach, he continued his studies with the composer and music publisher Johann Anton André.
Between 1810 and 1815, he contributed four "characteristic sound paintings" (Charakteristische Tongemälde), which helped establish his reputation.
In 1818, Riotte became assistant Kapellmeister to the famous Theater an der Wien, shortly after its acquisition by a group of Viennese court nobles, including Ferdinand Palffy von Erdöd.
The new owners decided to change the repertoire of the opera house, and Riotte wrote the music for the some of theatre's new spectacles, including children's ballets.
With more than 300 performances of his works, Riotte's exposure surpassed that of Ignaz von Seyfried and Mozart, although he remained well-behind the leading operatic composer of the day, Gioacchino Rossini.
On account of his attachment with Sankt Wendel, he supported the town and left his estate to endow a local charitable institution.