François-Joachim de Pierre de Bernis, French cardinal and diplomat (d. 1794)

François-Joachim de Pierre de Bernis, comte de Lyonnais (22 May 1715 – 3 November 1794) was a French cardinal and diplomat. He was the sixth member elected to occupy Seat 3 of the Académie française in 1744. Bernis was one of the most prominent figures in the autobiography of Giacomo Casanova Histoire de ma vie (Story of My Life) starting from the chapter on "Convent Affairs".