Ontígola is a municipality in the province of Toledo, within the autonomous community of Castile-La Mancha, Spain. It lies in the central part of the country, in the comarca of La Sagra, roughly 50 kilometres south of Madrid and close to the town of Aranjuez.
According to the 2023 census (INE), the municipality had a population of 4,926 inhabitants. Its proximity to both Madrid and Aranjuez has made it part of the wider commuter belt south of the capital.
Ontígola is best known for the Laguna de Ontígola, a wetland area near the municipality that forms part of the protected natural space associated with the Tagus river basin. The town also sits close to the historic royal site of Aranjuez, a UNESCO World Heritage cultural landscape.