The Iloilo Provincial Board is the Sangguniang Panlalawigan (provincial legislature) of the Philippine province of Iloilo.
The members are elected via plurality-at-large voting: the province is divided into five districts, each having two seats. A voter votes up to two names, with the top two candidates per district being elected. The vice governor is the ex officio presiding officer, and only votes to break ties. The vice governor is elected via the plurality voting system province-wide.
The districts used in appropriation of members are coextensive with the legislative districts of Iloilo.
Aside from the regular members, the board also includes the provincial federation presidents of the Liga ng mga Barangay (ABC, from its old name "Association of Barangay Captains"), the Sangguniang Kabataan (SK, youth councils) and the Philippine Councilors League (PCL).
Since 1992, Sangguniang Panlalawigan members have been elected from districts to ensure geographical representation, and the size of the province's Sanggunian was dependent on its income classification rather than population.
These are the members after the 2025 local elections and 2023 Philippine barangay and Sangguniang Kabataan elections.
The Standing Committee of the 15th Sangguniang Panlalawigan was finalized under Vice Governor Nathalie Ann Debuque during the second regular session on July 8, 2025. A total of 29 committees were assigned through a collaborative process, with each chaired by a member of the Sangguniang Panlalawigan. The table below lists the standing committees and their respective chairs and vice chairs.
This is a list of former and incumbent Vice Governors who have served as presiding officers of the Provincial Board, along with former and incumbent Board members.
Includes Guimaras and Iloilo City