The Buckingham Canal is a 796 kilometres (494.6 mi)-long fresh water navigation canal, that parallels the Coromandel Coast of South India from Kakinada of Andhra Pradesh to Pichavaram near Chidambaram of Tamil Nadu. The canal connects most of the natural backwaters along the coast to Chennai (Madras) port.
The canal was constructed during British rule, and was an important waterway during the late nineteenth and early twentieth centuries.