Philip Schuyler Van Rensselaer (1767–1824) was the Mayor of Albany, New York on two occasions. He has the third longest tenure of service by an Albany Mayor, after Erastus Corning II and Gerald Jennings.
Philip S. Van Rensselaer was born in Albany on April 15, 1767. A son of Stephen Van Rensselaer II and Catharina (or Catharine) Livingston, he was raised and educated at Van Rensselaer Manor. After his father's death his mother married Eilardus Westerlo, a member of another prominent Albany area family.
He was the brother of Stephen Van Rensselaer III and the grandson of Philip Livingston. Abraham Ten Broeck was his uncle. Rensselaer Westerlo was his half-brother.
As an adult, Van Rensselaer lived in Albany and became a successful businessman and banker. Among his activities, he was the President of the Bank of Albany, a Trustee of Union College, and a founder of The Albany Academy. He owned several warehouses, extensive land along Albany's Hudson River waterfront, and flour and plaster mills on the Normans Kill at the Bethlehem town line. His mills were destroyed by fire in 1820.
In 1793 Van Rensselaer became an Alderman. He served as Mayor from 1799 to 1816, and was succeeded by Elisha Jenkins. Van Rensselaer returned to office from 1819 to 1820, and was succeeded by Charles E. Dudley.