Nut, in Egyptian religion, sky-goddess. She was the sister-wife of the earth god Geb, to whom she bore Osiris, Isis, Set, and Nephthys. She was sometimes represented with her hands and feet on the earth and the curve of her body forming the vault of heaven.

Nut may refer to:

• Nut (climbing), a metal wedge used as protection during rock climbing
• NUT Container, a free multimedia container format
• Nut (fruit), a type of fruit borne by certain flowering plants
• Nut (goddess), a goddess in Egyptian mythology
• Nut hand, in poker, the best possible 5-card poker hand in hold 'em games, also referred to as "The Nuts"
• Nut (hardware), a fastener with internal screw thread
• Nut (linear positioning), the moving element along a lead screw or ball screw
• NUT (motorcycle), a now defunct British motorcycle manufacturer
• Nut (string instrument), a strip of hard material used to stop string vibrations
• also the adjustment device at the end of a bow (music)
• National Union of Teachers (NUT) in the United Kingdom
• The Nut, a volcanic plug and landmark near Stanley, Tasmania
• nut case (slang), a crazy person

Nuts may refer to:

• Nuts, a British lad mag
• National University Theatre Society, the student theatre society of the Australian National University
• Nuclear Utilization Target Selection, counterpart to mutual assured destruction
• Nomenclature of Territorial Units for Statistics, a standard for referencing the administrative division of countries
• Norwegian University of Technology and Science
• No U-Turn Syndrome
• Nuts (comic strip), a comic strip by Gahan Wilson that appeared in National Lampoon
• "Nuts!", a quote attributed to General Anthony McAuliffe at the Battle of Bastogne
• A slang term for the testicles.