Banganga Tank is part of the Walkeshwar Temple Complex in the city of Bombay, India. It was built by the Silhara dynasty in the 14th century. The tank is fed by a spring and every February the tank is cleaned and spruced up for the Banganga festival, a cultural event in the city. An astonishing fact about the tank is that the waters of the tank is sweet despite the presence of the sea just a few decametres away.

Legend has it that the Hindu god Rama on his travels stopped at this location and in his quest for potable water shot an arrow into the ground to produce a freshwater spring.

The tank today is a rectangular pool structure surrounded by steps on all four sides. At the entrance are two pillars in which dias used to be lit in ancient times. On the western flank of the tank is an ancient temple built of by the Silhara kings.