Achille Locatelli (15 March 1856 in Seregno, Milan, Italy â 5 April 1935 in Rome) was a Roman Catholic cardinal. He worked in papal diplomacy, and among other positions, he was nuntius in Argentina, Paraguay, and Uruguay.
He was named Apostolic Nuncio to Belgium on 8 July 1916.
He was appointed Apostolic Nuncio to Portugal on 18 July 1918.
He was made cardinal in 1922 by Pope Pius XI.