ACK, Ack or Acks may refer to:

Computing

  • Acknowledgement (data networks)
  • ACK (TCP), the control character used in the Transmission Control Protocol to acknowledge receipt of a packet

<!--* ack, a command-line program similar to grep (no WP:DABMENTION)-->

  • Amsterdam Compiler Kit, a retargetable compiler suite and toolchain

People

  • Ack Kinmonth, 21st century Australian composer
  • Ack van Rooyen (1930–2021), Dutch jazz trumpeter and flugelhornist
  • Ron Acks (1944–2023), American National Football League player

Transportation

  • Nantucket Airlines or ACK Air, an American airline
  • IATA airport code for Nantucket Memorial Airport, Massachusetts, US
  • ACK, station code for Acklington railway station, Acklington, Northumberland, UK

Other uses

  • Anglican Church of Kenya
  • Amar Chitra Katha, an Indian comic book publisher
  • Assumption College, Kilmore, an Australian school
  • ack, ISO 639-3 code for Akakhora, an extinct Great Andamanese language
  • TNK2 or ACK or ACK1, an enzyme that in humans is encoded by the TNK2 gene

See also

  • Armstrong Whitworth F.K.8, an early biplane known as the "Big Ack"
  • Ack Ack (disambiguation)