Pio Vittorio Vigo (4 November 1935 – 30 April 2021) was an Italian Roman Catholic Archishop (personal title) emeritus of Acireale in the Province of Catania. He was installed as bishop of the diocese on 30 November 2002, having been nominated on 15 October of the same year. Due to his advanced age, he tendered his resignation as bishop of the diocese on 26 July 2011. He was replaced by Monsignor Antonino Raspanti, who assumed office on 1 October 2011.