Lambunao, officially the Municipality of Lambunao (Kinaray-a: Banwa kang Lambunao), is a first class municipality in the Province of Iloilo, Philippines. Lambunao is located 47 kilometres (29 mi) away from Iloilo City. It is the largest municipality in the Iloilo Province in terms of land area which is 40,709 hectares to which 73.88% are alienable and disposable land while 26.12% are forestlands. According to the 2024 census, it has a population of 80,724 people. Bounded on the North by the Municipality of Calinog, on the East by the Municipalities of Dueñas and Pototan, on the South by the Municipalities of Janiuay and Badiangan, on the West by a portion of the Municipalities of Janiuay, Iloilo and Valderrama, Antique.
Total Population: 80,724 (PSA 2024)
No. of Barangays: 73
Income Classification: 1st Class Municipality
Location: approximately 194 m. above sea level, known to be the highest so far in the province. It lies within 122 34’00” East Longitude and within 11 09’00’ North Latitude.
73 Barangays
| Agsirab | Cayan Este | Panuran |
| Agtuman | Cayan Oeste | Pasig |
| Alugmawa | Corot-on | Buwang |
| Badiangan | Coto | Poblacion Ilaya |
| Bagongbong | Cubay | Poong |
| Balagiao | Cunarum | Pughanan |
| Banban | Daanbanwa | Pungsod |
| Bansag | Gines | Quiling |
| Bayuco | Hipgos | Sagcup |
| Binaba-an Armada | Lanot Pequeño | San Gregorio |
| Binaba-an Labayno | Legayada | Sibacungan |
| Binaba-an Limoso | Lumanay | Sibaguan |
| Binaba-an Portigo | Madarag | Simsiman |
| Binaba-an Tirador | Magbato | Supoc |
| Bonbon | Maite Grande | Tampucao |
| Bontoc | Maite Pequeño | Tranghawan |
| Buri | Malag-it | Tubungan |
| Cabatangan | Manaulan | Tuburan |
| Cabugao | Maribong | Walang |
| Cabunlawan | Marong | Burirao |
| Caguisanan | Misi | Lanot Grande |
| Caloy-ahan | Natividad | Poblacion Ilawod |
| Caninguan | Pajo | |
| Capangyan | Pandan |