Pietro Antonio Rotari (30 September 1707 – 31 August 1762) was an Italian painter of the Baroque period. Born in Verona, he led a peripatetic career, and died in St Petersburg, where he had traveled to paint for the Russian court.
He was initially a pupil of Antonio Balestra, but moved and lived in Venice from 1725 to 1727. He then joined the studio of Francesco Trevisani in Rome (1728–1732) Between 1731 and 1734, he worked with Francesco Solimena in Naples. He then returned then to Verona, where he started a studio. But soon he was off to paint for royal and aristocratic patrons in Dresden, Vienna, and Munich.
He was much in demand as a portraitist, and painted royal families in Dresden and Saint Petersburg. He also painted the multi-figured altarpieces of the Four Martyrs (1745) for the church of the Ospedale di San Giacomo in Verona.