| Governor of Ilocos Sur | |
|---|---|
| Residence | Ilocos Sur Provincial Capitol |
| Term length | 3 years |
| Inaugural holder | Mena Crisologo |
| Formation | 1818 (Spanish era), 1901 (American era) |
The governor of Ilocos Sur (Filipino : Punong Panlalawigan ng Ilocos Sur), is the chief executive of the provincial government of Ilocos Sur.
| No. | Image | Governor [1] | Term |
|---|---|---|---|
| 1 |  | Mena Crisologo | 1901-1906 |
| 2 | Félix Angco | 1906-1908 | |
| 3 | Estanislao Reyes | 1908-1909 | |
| 4 | Manuel Singson | 1910-1912 | |
| 5 |  | Juan Villamor | 1912-1916 |
| 6 | José Villanueva y Florendo | 1916-1919 | |
| 7 |  | Simeón Ramos | 1919-1925 |
| 8 |  | Alberto Reyes | 1925-1928 |
| 9 |  | Alejandro Quirolgico | 1928-1931 |
| 10 |  | Lupo Biteng | 1931-1932 |
| (9) | | Alejandro Quirolgico | 1933-1936 |
| 11 |  | Pedro Singson Reyes | 1937-1941 |
| 12 | Pascual Pimentel | 1943-1945 | |
| 13 |  | Sixto Brillantes | 1945-1946 |
| 14 | Perfecto Faypon | 1946-1952 | |
| 15 |  | Eliseo Quirino | 1952-1955 |
| (11) | | Pedro Singson Reyes | 1956-1959 |
| 16 | Godofredo S. Reyes | 1960-1963 | |
| 17 | Carmen "Carmeling" P. Crisologo | 1964-1971 | |
| 18 |  | Luis "Chavit" Singson | 1972-1986 |
| 19 | Jose G. Burgos Jr. | 1986-1987 | |
| 20 | Antonio "Yeng" Abaya | 1987 | |
| 21 | Anita Lorenzana | 1987-1988 | |
| 22 | Evaristo "Titong" C. Singson | 1988 | |
| 23 | Mariano M. Tajon | 1989-1992 | |
| 24 |  | Deogracias Victor Savellano | 1992 |
| (18) | | Luis "Chavit" Singson | 1992-2001 |
| (24) | | Deogracias Victor Savellano | 2001-2004 |
| (18) | | Luis "Chavit" Singson | 2004-2007 |
| (24) | | Deogracias Victor Savellano | 2007-2010 |
| (18) | | Luis "Chavit" Singson | 2010-2013 |
| 25 |  | Ryan Luis Singson | 2013-2022 |
| 26 |  | Jeremias C. Singson | 2022–present |
