Janville-sur-Juine (French pronunciation: [ʒɑ̃vil syʁ ʒɥin] ⓘ, literally Janville on Juine) is a commune in the Essonne department in Île-de-France in northern France.

Inhabitants of Janville-sur-Juine are known as Janvillois.

The village lies on the right bank of the river Juine, which forms all of the commune's northern border.

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