Ibajay, officially the Municipality of Ibajay, is a 3rd class municipality in the province of Aklan, Philippines. During the creation of Aklan Province in 1956, Ibajay was its biggest municipality in terms of population. According to the 2020 census, it has a population of 52,365 people, making it the third most populated town in Aklan.

Aklan's 2nd congressional district is one of the two congressional districts of the Philippines in the province of Aklan. It has been represented in the House of Representatives of the Philippines since 2019. The district consists of the municipalities of Buruanga, Ibajay, Lezo, Makato, Malay, Malinao, Nabas, Numancia, and Tangalan. It is currently represented in the 18th Congress by Teodorico Haresco Jr. of the Nacionalista Party (NP), who has represented the district since its creation.