Papa Sergio III alikuwa Papa kuanzia tarehe 29 Januari 904 hadi kifo chake tarehe 14 Aprili 911. Alitokea Roma, Lazio, Italia. Jina lake la kuzaliwa pia lilikuwa Sergius. Alimfuata Papa Leo V akafuatwa na Papa Anastasio III. 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 Sergio III katika Kamusi Elezo ya Kikatoliki