Philipp Ludwig von Sinzendorf (14 July 1699 – 28 September 1747) was an Austrian cardinal of the Catholic Church.
He was born in Paris, France. The House of Von Sinzendorf was a member of the Upper Austrian nobility. He was bishop of Györ in Hungary from 1726 to 1732; after that, he was Prince-Bishop of Breslau (1732 – 1747; until 1742 completely part of Austria, later mostly part of Prussia).
He was made a cardinal in November 1727 by Pope Benedict XIII and was Cardinal-Priest of Santa Maria sopra Minerva from 1730 to 1747.
He died in Breslau.