ACK
Appearance
	
	
ACK or Ack may refer to:
Arts and entertainment
[edit]- Amar Chitra Katha, an Indian comic book series
 
Aviation
[edit]- Armstrong Whitworth F.K.8, an early aircraft known as the "Big Ack"
 - IATA airport code for Nantucket Memorial Airport in State of Massachusetts, USA
 - Nantucket Airlines or ACK Air, an American airline
 
Technology
[edit]- Acknowledgement (data networks)
- ACK (TCP), the control character used in the Transmission Control Protocol to acknowledge receipt of a packet
 
 - Amsterdam Compiler Kit, a retargetable compiler suite and toolchain
 - ack, a grep-like source code search tool
 
Transportation
[edit]- Acklington railway station (Station code: ACK), a rail station in the UK
 
Other uses
[edit]- Anglican Church of Kenya
 - Aka-Kora language (ISO 639-3: ack), an extinct Great Andamanese language
 - Assumption College, Kilmore, an Australian school
 - TNK2 or ACK or ACK1, an enzyme that in humans is encoded by the TNK2 gene