A sandbank is a landform consisting of a sand bar in water, which creates a shallow area which may pose a hazard to watercraft.
Sandbank is also the name of various specific places:
Sandbank, Argyll, a village in Scotland Sandbanks, a spit in Poole harbour in the south of England Sandbanks Provincial Park, a provincial park in Ontario, Canada Sandbanks National Park, a national park in Queensland, Australia
People with the surname Charles Sandbank (1931–2008), British electronics engineer