Jurong Lake (; ; ) is a 70ha freshwater lake and reservoir located in the western region of Singapore formed with the damming of Sungei Jurong further downstream. The lake serves as a reservoir contributing to the water supply of the country. It lies next to the Lakeside MRT station, which derived its name from this geographical feature. The lake is surrounded by parkland, which serves as a recreational ground for nearby residents in Jurong East and Jurong West New Towns.