Oton, officially known as the Municipality of Oton, is a municipality located in the province of Iloilo in the Philippines. It is situated approximately 11 kilometres west of Iloilo City and serves as part of the Metro Iloilo–Guimaras area.
According to the 2024 census, Oton has a population of 99,920 people. This figure makes it the most populous town in both the province of Iloilo and the entire island of Panay.