Walwan Dam, (or Valvan Dam) is a gravity dam on the Indrayani river near Lonavla, Pune district in State of Maharashtra in India. It provides water to the nearby Khopoli Power Plant and to residents of Lonavla and Khandala and neighborhood villages.

The height of the dam above lowest foundation is 26.36 m (86.5 ft) while the length is 1,356 m (4,449 ft). The volume content is 182,000 m (6,400,000 cu ft) and gross storage capacity is 72,500,000.00 m (2.560313337×10 cu ft).

• Hydroelectricity

• Dams in Maharashtra
• List of reservoirs and dams in India