António Carvalho de Silva Porto (Porto, 11 November 1850 - Porto, 11 June 1893) was a Portuguese naturalist painter.
Born in Porto, he studied there under João António Correia and T. Furtado, then continued his studies in Paris and Rome.
While in Paris he exhibited his work in the Salon and in the World´s Fair of 1878. In Paris, he studied with his friend João Marques de Oliveira, where they were pupils of Adolphe Yvon and Alexandre Cabanel. They became followers of the naturalist Barbizon School, and brought the new school of painting to Portugal, when they returned in 1879.
Silva Porto become one of the most acclaimed naturalist painters of his generation, showing the heritage of Jean-Baptiste-Camille Corot and Charles-François Daubigny. Secondary effects from impressionism can sometimes be found in his paintings.
His work is represented at the Chiado Museum, in Lisbon, and at the National Museum Soares dos Reis, in Porto.