|Arabian Sea, India|
|Length||122 km (76 mi)|
The Ulhas River is a river in Maharashtra, India. It is in the Thane, Raigad, and Pune districts of that state. It flows north and west from it source to where it splits into Vasai Creek and Thane Creek, near Thane. The Ulhas divides Salsette Island from the mainland, and is important for the water supply of Mumbai.