Fryderyk Józef Jan Kanty Moszyński (1738 in Dresden – 21 January 1817 in Kiev) of Nałęcz coat of arms was a noble (szlachcic) in the Polish–Lithuanian Commonwealth.

Fryderyk Józef Moszyński was a son of Jan Kanty Moszyński, Grand Treasurer of the Crown (podskarbi wielki koronny), and Fryderyka Augusta, an illegitimate daughter of Augustus II the Strong, king of Poland, and his mistress Countess of Cosel.

[1] Fryderyk Józef Moszyński spent his childhood in Dresden under the tutelage of Heinrich von Brühl.

[1] In 1766–68 he was the member of Crown Treasury Commission, and from 1768 a vice-commander of the Cadet Corps, a function he performed well, even donating some of his funds to the Szkoła Rycerska.

On 28 June 1794 an angry mob stormed the prison with the intention of hanging many of the people considered traitors; Moszyński was saved by the intervention of Ignacy Wyssogota Zakrzewski, although many others – like bishop Ignacy Jakub Massalski or prince Antoni Stanisław Czetwertyński-Światopełk – were hanged that day.