Gian Lorenzo Berti is a portrait painting Neapolitan Italian Rococo painter Gaspare Traversi.

It is on display in the Musée des Beaux-Arts of Strasbourg, France.

[1][2] On account of its severity and its stateliness, this 18th-century portrait painting was at first thought to be a work by the 17th-century painter Andrea Sacchi, who had in fact preceded Traversi by several generations.

It was attributed to Traversi by Roberto Longhi in 1922; Longhi would later heap fulsome praise on the painting, calling it "one of the most beautiful portraits of the whole 18th century" in a 1927 article full of enthusiastic descriptions.

The sitter was subsequently identified as Berti by Francesco Barocelli in 1990.