Giovan Antonio de' Rossi

Giovanni Antonio de' Rossi (1616–1695) was an Italian architect of the Baroque period, active mainly in Rome.

He was a contemporary of Carlo Rainaldi. He helped design the Cappella Lancellotti in St John Lateran. He designed the church of Santa Maria in Campo Marzio in 1682-1685. He built the oval chapel of the Palazzo Monte di Pietà. His labors in the extensive and hurried refurbishment (1670–76) of the Palazzo Altieri near the Church of the Gesú, started with the ascent of Pope Clement X. He designed the Palazzo D'Aste-Bonaparte, near the Palazzo Venezia. The design of this small palace influenced the later designs of Alessandro Specchi and Tommaso de Marchi of the Palazzo de Carolis and the Palazzo Millini-Cagiati respectively. He completed the sacristy of Tivoli Cathedral in 1657.