TAC

TAC may refer to:

Tác, Hungary
Pablo Tac, a Luiseño Indian who provided a rare contemporary Native American perspective on the institutions and early history of California
Pham Cong Tac, the Pope of the Cao Dai Sect that battled against Ngo Dinh Diem in control of South Vietnam
Tarsus American College
Thomas Aquinas College

In automotive

In transportation:

TAC Colombia, a charter airline based at El Dorado International Airport in Bogotá, Colombia
TAC - Transportes Aéreos Catarinense, a Brazilian airline that ceased to exist in 1966
Thai Airways Company, a former airline
Terminal area chart, an aeronautical chart intended for navigation under Visual Flight Rules that depict areas surrounding major airports
Transport Accident Commission, the statutory insurer of third-party personal liability for transport accidents in Victoria, Australia
Trenau Arriva Cymru, Welsh for Arriva Trains Wales

In military/law enforcement:

Demro TAC-1, a pistol calibre carbine/submachine gun
.408 Chey Tac, a rifle cartridge that was developed by Dr. John D. Taylor with the assistance of machinist William O. Wordman
CheyTac Intervention, an American bolt action sniper rifle
McMillan TAC-50, a military/law enforcement sniper rifle chambered in .50 BMG
Tactical Air Command, a former command of the United States Air Force charged with battlefield-level air combat
SWAT or TAC, used by some law enforcement agencies to denote special weapons and tactics (SWAT) units and operations

In technology:

Group TAC, a Japanese anime and computer graphics studio located in Shibuya, Tokyo
TAC (software), an open source instant messaging and chat client program written by AOL
tac (Unix), a program that concatenates lines in reverse
Terminal Access Controller, a host computer that accepts terminal connections
Thermally Advantaged Chassis, an Intel specification for improved computer cooling when using an Intel Pentium 4, Pentium D, or Celeron D
Three address code, a representation of intermediate code used by compilers
Type Allocation Code, a portion of a mobile device's IMEI code used to identify the manufacturer and model
Triacetyl cellulose, a polymer, usually in film form, used in various display applications
Technical Assistance Center, a company's internal support group for external customers
TAC (building automation), a Swedish-based building automation company originally established in 1925. Owned by Schneider Electric
Type Allocation Code (TAC) is the initial eight-digit portion of the 15-digit IMEI code used to uniquely identify wireless devices.

In medicine:

In other fields:

Tantalum Carbide, a chemical compound with the chemical formula TaC
Traditional Anglican Communion
Tartu Aviation College, the old name of the Estonian Aviation Academy
Technical Advisory Committee, of the Florida Building Commission
Technical Advisory Council, a federal advisory committee of the Federal Communications Commission
The Accessible Channel, a Canadian digital television channel
The Aleut Corporation, an Alaska Native Regional Corporation created under the Alaska Native Claims Settlement Act of 1971
The Athletics Congress The United States national governing for the sport of Track and Field from 1979 until it was renamed USATF in 1992
The Architects Collaborative, a Cambridge, MA, firm following the teachings of Walter Gropius
Total Allowable Catch, a commercial fishing regulation to limit the maximum catch of a specific fish species within an area
Treatment Action Campaign, a South African grassroots pressure group which was founded by Zackie Achmat
Treaty of Amity and Cooperation in Southeast Asia
Traditional Anglican Communion, group of theologically conservative Anglicans
The American Conservative, a conservative magazine from the old right or paleoconservative perspective founded by Pat Buchanan, Scott McConnell and Taki Theodoracopulos
Terrible Monster Attack Crew, a fictional pilot squadron in Ultraman Ace

In gaming: