The 'tiger of the Ganga' is the nomenclature for the Ganga river dolphin which enjoys the same status in the river ecosystem as that of a tiger in a forest.

Like the tiger, the dolphin is close to extinction with its numbers having plunged from 6,000 in 1982 to less than 1,800 in 2012. With India losing nearly 160 animals a year, WWF India has launched a three-day awareness campaign, 'My Ganga, My Dolphin', in which they will conduct a survey of the number of dolphins present across a 2,800-km stretch of the Ganga river, along with the Yamuna, Son, Ken, Betwa, Ghagra and Geruwal rivers.