ATK

ATK may refer to:

Companies Alliant Techsystems, an American aerospace, defense, and sporting goods company, now part of Northrop Grumman ATK motorcycles, an off-road motorcycle manufacturer A.T. Kearney, a management consulting firm ATK Thiokol, or ATK Launch Systems Group, former names of Thiokol, an aerospace, defense and commercial products company, later part of Orbital ATK

Software Accessibility Toolkit, a GNOME API for developing accessible applications Andrew Toolkit, part of the Andrew Project used to create and distribute documents Atomistix ToolKit, software for atomic-scale modeling

Sports ATK (football club), Indian football club active from 2014 to 2020

Other uses Arachidonyl trifluoromethyl ketone, an analog of arachidonic acid Aboriginal traditional knowledge, cultural knowledge of aboriginal peoples America's Test Kitchen, a cooking show on PBS Arbetstidsförkortning, a system of additional leave entitlement in Sweden Atqasuk Edward Burnell Sr. Memorial Airport, Atqasuk, Alaska (IATA Code: ATK) Bruton's tyrosine kinase, a protein Kiribati Grand Order (, post-nominals: ATK)

See also Attack (disambiguation)