Papa Pius VIII (20 Novemba 1761 – 30 Novemba 1830) alikuwa Papa kuanzia tarehe 31 Machi/5 Aprili 1829 hadi kifo chake. Alitokea nchi ya Italia. Alitokea Cingoli, Italia. Jina lake la kuzaliwa lilikuwa Francesco Saverio Castiglioni. Alimfuata Papa Leo XII na kuvishwa taji la Kipapa tarehe 5 Aprili 1829. Akafuatwa na Papa Gregori XVI. Orodha ya Mapapa https://www.vatican.va/content/vatican/en/holy-father.index.html#holy-father https://www.vatican.va/content/vatican/en/holy-father.index.html#holy-father Papa Pius VIII katika Kamusi Elezo ya Kikatoliki