A millstone is a stone used in gristmills, for grinding wheat or other grains.

Millstone may also refer to:

• "Millstone", a song on Brand New's 2006 album The Devil and God Are Raging Inside Me
• "Millstone", a song on Eisley's 2013 album Currents
• The Millstone (novel), a novel by Margaret Drabble

• Millstone Nuclear Power Plant, the only nuclear power generation site in Connecticut
• Millstone River, a 38.6-mile-long (62.1 km) tributary of the Raritan River in central New Jersey
• Millstone Township, New Jersey, a township in Monmouth County, New Jersey, United States
• Millstone, Mercer County, New Jersey, an unincorporated community located within East Windsor Township in Mercer County, New Jersey, United States
• Millstone, New Jersey, a borough in Somerset County, New Jersey, United States

• James Millstone (1930–1992), American journalist and editor
• Millstone Coffee, a brand of coffee sold in the US
• Millstone Grit, any of a number of coarse-grained sandstones of Carboniferous age which occur in the British Isles
• Millstone Hill, a fully steerable dish antenna

• Grindstone, a round sharpening stone used for grinding or sharpening ferrous tools

This disambiguation page lists articles associated with the title Millstone.
If an internal link led you here, you may wish to change the link to point directly to the intended article.