A bolster is a type of pillow or cushion.

Bolster may also refer to: Bolster (knife), the thick metal portion of a knife joining the handle and the blade Bolster (surname) Bolster, Washington, a ghost town in Okanogan County, Washington Bolster the Giant, a giant in Cornish legend Bolster plate, part of a stamping press Span bolster, railroad terminology Truck bolster, railroad terminology USS Bolster (ARS-38), a Diver-class rescue and salvage ship A type of Chisel

See also Bolster heath