| Type: | Bishop |
| Honorific-Prefix: | The Most Reverend |
| Mario Russotto | |
| Bishop of Caltanissetta | |
| Church: | Roman Catholic Church |
| Archdiocese: | Agrigento |
| Metropolis: | Agrigento |
| See: | Caltanissetta |
| Enthroned: | 27 September 2003 |
| Appointed: | 2 August 2003 |
| Predecessor: | Alfredo Maria Garsia |
| Ordination: | 29 June 1981 |
| Ordained By: | Angelo Rizzo |
| Consecration: | 27 September 2003 |
| Consecrated By: | Salvatore De Giorgi |
| Birth Name: | Mario Russotto |
| Birth Date: | 23 July 1957 |
| Birth Place: | Vittoria, Sicily, Italy |
| Nationality: |  Italy |
| Religion: | Roman Catholic |
| Motto: | Latin: In verbis tuis meditabor |
| Coat Of Arms: | Coat of arms of Mario Russotto.svg |
Mario Russotto (23 July 1957, Vittoria) is a Roman Catholic bishop. He was ordained priest on 29 June 1981 by bishop Angelo Rizzo. He was appointed bishop of Caltanissetta on 2 August 2003 by Pope John Paul II and consecrated on 27 September 2003 by cardinal Salvatore De Giorgi.[1] [2]