Hat (disambiguation)

Look up hat in Wiktionary, the free dictionary.

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, an alternate term for a projection matrix
Hat operator, notation used in several different branches of mathematics
Hat, former vocalist for the Norwegian black metal band Gorgoroth
Hat, the Haskell Tracer, a debugging tool for the Haskell (programming language)
Jack McVitie, English gangster known as Jack "The Hat"
The Hat, a Southern California fast-food restaurant
The Hat, nickname of LSU football coach Les Miles
"The Hat", episode 45 of Homicide: Life on the Street (season 4)
The Hat, a book by Jan Brett
The Hat, a book by Tomi Ungerer

HAT or hat may be an abbreviation, acronym, or code for:

Handwoordeboek van die Afrikaanse Taal, an Afrikaans dictionary
Hardware Attached on Top, a specific expansion board form factor for later models of the Raspberry Pi
Hashed array tree, a data structure used in computer programming
HAt, chemical symbol for hydrogen astatide
HAT, ISO 639 code for the Haitian Creole language
HAT medium, a selective Hypoxanthine-Aminopterin-Thymidine medium used in microbiology and immunology
HAT segment, the Head, Arms, and Trunk as a segment in Kinematics analysis
HATNet Project, the Hungarian Automated 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, a test administered to students applying to read history at Oxford University
Human African Trypanosomiasis, diseases caused by parasitic protozoan trypanosomes

See also