TCU may stand for:

Education

* Tanzania Commission for Universities, regulatory body for Universities in Tanzania * Texas Christian University, a private university in Fort Worth, Texas ** TCU Horned Frogs, the athletic programs of the school * Tokyo Christian University, a private university in Chiba, Japan * Tokyo City University, a private university in Tokyo, Japan * Tzu Chi University, a private university in Hualien, Taiwan * Tianjin Chengjian University, a university in Tianjin, China

Science and technology

* Telecommunication control unit, a device that regulates input and output in a mainframe computer * Telematic control unit, a device on board of a vehicle that controls tracking of the vehicle * Transmission control unit, a controlling device in automobile transmissions and engines * Thompson/Center Ugalde, a family of custom ammunition cartridges for firearms * Towering cumulus cloud (TCu), types of which are ''cumulus congestus'' or ''cumulus castellanus''

Other

* Tauranga City United, a New Zealand association football club *

Transitional care unit Transition or transitional may refer to: Mathematics, science, and technology Biology * Transition (genetics), a point mutation that changes a purine nucleotide to another purine (A ↔ G) or a pyrimidine nucleotide to another pyrimidine (C ↔ ...

, a facility in a hospital where the level of care falls between intensive care and normal care * Transportation Communications Union, a labor group for railroad-related workers * Triangle Credit Union, a bank in New Hampshire * Tribunal de Contas da União, the Brazilian federal court of accounts *

Turn construction unit A turn construction unit (TCU) is the fundamental segment of speech in a conversation, as analysed in conversation analysis. The idea was introduced in "A Simplest Systematics for the Organization of Turn-Taking for Conversation" by Harvey Sacks ...

, a segment of speech in the study of linguistics {{disambiguation