ATK may refer to:
The Atkinson–Shiffrin model (also known as the multi-store model or modal model) is a model of memory proposed in 1968 by Richard Atkinson and Richard Shiffrin.
The Atkins diet, also known as the Atkins nutritional approach, is a low-carbohydrate diet promoted by Robert Atkins and inspired by a research paper he read in The Journal of the American Medical Association.
The Atkinson-cycle engine is a type of internal combustion engine invented by James Atkinson in 1882. The Atkinson cycle is designed to provide efficiency at the expense of power density, or total power extracted per unit of displacement per rotation.
WS Atkins plc (commonly known as Atkins) is a British multinational engineering, design, planning, architectural design, project management and consulting services company headquartered in Epsom, Surrey.
Atkinson is an English-language surname. The name is derived from a patronymic form of the Middle English Atkin.
Atkins v. Virginia, 536 U.S. 304 (2002), is a case in which the Supreme Court of the United States ruled 6-3 that executing people with intellectual disabilities violates the Eighth Amendment's ban on cruel and unusual punishments, but states can define who has intellectual disability.
Atkinson County is a county located in the southeastern portion of the U.S. state of Georgia. As of the 2010 census, the population was 8,375. The county seat is Pearson.
Atkinson is a town in Rockingham County, New Hampshire, United States. The population was 6,751 at the 2010 census.
The Afrikaans Language and Culture Association (Afrikaans: Afrikaanse Taal- en Kultuurvereniging), ATKV, is a society that aims to promote the Afrikaans language and culture.