| 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.