Nat or NAT may refer to:Nat., an abbreviation for
NaturalNat (information), logarithmic unit of information or entropy
Nat (spirit), Burmese spirit worshipped in Myanmar (Burma) in conjunction with Buddhism
Nat (Wild Cards), slang term from the novels referring to normal humans uninfected by the Wild Card virusNat, minor character in The Smurfs comics and animated series
Nat Sherman, brand of natural "luxury cigarettes"Nat-trick (natural hat trick), when a player scores three goals consecutively in a single hockey game
National Actors Theatre, company founded in 1991 by the late actor Tony Randall
National Assessment & Testing, high school mathematics competition
Natural antisense transcript, RNA transcript complementary to other RNA transcript in a cell
Neonatal alloimmune thrombocytopenia, disease
Network address translation, in computer networking, a system for reusing IP addresses
North Atlantic Tracks, trans-Atlantic routes that stretch from the northeast of North America to the west of Ireland across the Atlantic OceanNouvelle automotrice Transilienne, railway supply project in FranceNucleic Acid Testing, test for specific genetic material
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