ATK

ATK may refer to:

• Alliant Techsystems, a mid-level United States aerospace and defense contractor
• Accessibility Toolkit, a GNOME API for developing accessible applications
• ATK motorcycles, an off-road motorcycle manufacturer
• Andrew Toolkit, part of the Andrew Project used to create and distribute documents
• Amateur Teen Kingdom, a pornographic website and company
• America's Test Kitchen, a cooking show on PBS
• Arbetstidsförkortning, a system of additional leave entitlement in Sweden
• Atomistix ToolKit, software for atomic-scale modeling
• Atqasuk Edward Burnell Sr. Memorial Airport in Atqasuk, Alaska (IATA Code: ATK)
• A.T. Kearney, a management consulting firm
• Bruton's (agammaglobulinemia) tyrosine kinase, a protein
• ATK Launch Systems Group (formerly Thiokol), an aerospace, defense and commercial products company
• ASUSTeK Computer Inc., a Taiwanese technology manufacturing company

See also

• Attack, abbreviated ATK in certain contexts