Piyu XII, Piyu Tunka payani, Eugenio Maria Giuseppe Giovanni Pacelli  (latin aru: Pius PP. XII, Italya aru: Papa Pio XII, Kastilla aru: Papa Pío XII, (* 1876 mara 2 uru Achuqa phaxsin  yuritayna - † 1958 mara 9 uru Taypi sata phaxsin yuriwi),  jacha marka taytakura. Awki Papa (1939-1958).