August Fryderyk Moszynski (January 25, 1731 in Dresden – June 11, 1786 in Padua) was Great Pantler of the Kingdom of Poland, collector, economist and freemason.He was a son of Jan Kanty Moszynski, the Under Treasurer of August II the Strong and Fredericka Alexandrine Cosel, the natural daughter of the same king.
Born and raised in Dresden, Moszynski was educated at the local military school and studied architecture under Gaetano Chiaveri.
He became friends with the future King of Poland, Stanislaw August Poniatowski, who later invited him to the Warsaw court.
Poniatowski made Moszynski a member of the Treasury Council and commissioner of the Royal Mint.
In 1765, Moszynski started working as director of royal construction and director of the theater.
After 1772, he oversaw the royal private collections.
Moszynski designed churches in Tarnopol and Mikulince.