Joaquín del Pino Sánchez de Rojas Romero y Negrete (January 20, 1729 – April 11, 1804), was a Spanish military engineer and politician, who held various positions in the South American colonial administration.

Promoted to lieutenant colonel the following year was sent to Montevideo at the request of viceroy Juan José de Vértiz y Salcedo in 1771 to repair the ramparts of the citadel.

Enlightened ruler, but true to the metropolis, carried out numerous public works, including the port expansion, construction of the Buenos Aires Recova entrusted to Juan Bautista Sigismund, who later became also the author of the Church of the Convent San Lorenzo and efficient administration promoted the construction of brick kilns and the building of shipyards in Corrientes and Assumption, to replace the foreign ships, which prohibited land, temporarily ending the export of raw hides common to that time.

Also limited the movement of foreigners, fearing the establishment of republican ideas of the French Revolution, and closed the first newspaper published in Buenos Aires, The Telegraph Commercial (1801).

Already seventy, he fell ill in April 1804, and died ten days later, leaving Rafael de Sobremonte as his appointed successor.