The three-letter abbreviation CTY may refer to:
Ctypes, ctype or another variant may refer to:
The Center for Talented Youth (CTY) is a gifted education program for school-age children founded in 1979 by Julian Stanley at Johns Hopkins University.
C character classification is an operation provided by a group of functions in the ANSI C Standard Library for the C programming language.
The Centre for the Talented Youth of Ireland (CTYI) is a youth programme for students between the ages of six and seventeen of high academic ability in Ireland.
In computing, a binding from a programming language to a library or operating system service is an application programming interface (API) providing glue code to use that library or service in a particular programming language.
Ctypansa is a genus of moths of the Noctuidae family.
Central Toronto Youth Services (CTYS) is an accredited children’s mental health centre serving youth throughout the Toronto Region.
Four Murders Are Enough, Darling (Czech: Čtyři vraždy stačí, drahoušku) is a 1971 Czechoslovak comedy film directed by Oldřich Lipský.
Čtyřlístek (Lucky Four or English: Four-leaf clover) is a Czech comic book series continuously published since 15 May 1969 created by Jaroslav Němeček.