ATK

ATK may refer to:

Companies

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

Other uses

• Arachidonoyl trifluoromethyl ketone, an analogue 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
• Atlético de Kolkata, an Indian Super League franchise
• Atqasuk Edward Burnell Sr. Memorial Airport in Atqasuk, Alaska (IATA Code: ATK)
• Bruton's tyrosine kinase, a protein

See also

• Attack, abbreviated ATK in certain contexts