Hat (disambiguation)

A hat is an item of clothing worn on the head.

Hat may also refer to:

An informal term for typographic and mathematical symbols
- caret (^)
- circumflex (ˆ)
Hat (album), an album by British musician Davy Graham, released in 1969
Hat, Azerbaijan, a village
Hat, Nepal
Hat District, a district of the Al Mahrah Governorate, Yemen
hat matrix
hat operator in mathematical notation
Hat, former vocalist for the Norwegian black metal band Gorgoroth
Hat, The Haskell Tracer, a debugging tool for Haskell (programming language)
HAt, the chemical symbol for hydrogen astatide
The Hat, a Southern California fast-food restaurant
The Hat, the nickname of LSU football coach Les Miles
"The Hat", episode 45 of Homicide: Life on the Street (season 4)
The Hat (Tomi Ungerer book), a book by Tomi Ungerer (also available in Weston Woods Studios)
The Hat (Jan Brett book), a book by Jan Brett
Jack 'The Hat' McVitie English gangster

HAT or hat is used as an acronym for:

Haitian Creole language ISO 639 code
Hashed array tree, a data-structure used in computer programming
HAT medium (hypoxanthine-aminopterin-thymidine medium), a selective medium used in microbiology and immunology
HATNet Project (Hungarian Automated Telescope Network, or HATNet), a telescope network for detecting and characterizing extrasolar planets
Hellenic Aeronautical Technologies, a Greek airplane manufacturer
Help authoring tool, software used to create online help manuals
Histone acetyltransferase, enzymes that acetylate conserved lysine amino acids on histone proteins
History Aptitude Test, administered to students applying to read History at Oxford University
Human African trypanosomiasis, diseases caused by parasitic protozoan trypanosomes
Handwoordeboek van die Afrikaanse Taal, an Afrikaans dictionary
HAT segment mean that you consider the Head, Arms and Trunk as a segment with no Degrees_of_freedom_(mechanics) between them (use in Kinematics analysis)

See also