ADK may refer to:
Companies and organizations Adirondack Mountain Club, a nonprofit organization in New York, New Jersey and Massachusetts ADK Corporation or Alpha Denshi, a video game development company in Japan Apna Dal (Kamerawadi), an Indian political party ADK Holdings, a Japanese advertising firm Lycée Anne de Kiev, a school in Kiev, Ukraine
Places Adg or Adk, a village in Razavi Khorasan Province, Iran Adak Airport (IATA airport code), Alaska, US Ardwick railway station (National Rail code), in Greater Manchester, England, UK
Science and technology Adenosine kinase, an enzyme that catalyzes the transfer of gamma-phosphate from ATP to adenosine ADK (gene), the gene that in humans encodes adenosine kinase Adenylate kinase, a phosphotransferase enzyme that plays an important role in cellular energy homeostasis
Android Open Accessory Development Kit Windows Assessment and Deployment Kit, a collection of tools ADK, a model for tunnel ionization
Other uses ADK (automobile), a Belgian automobile manufactured between 1923 and 1930 ADK/ADB class diesel multiple unit, class of units used on Auckland's suburban network Aggressors of Dark Kombat, an arcade game released by SNK and developed by Alpha Denshi Corp Dinesh Kanagaratnam or A.D.K. (born 1981), Sri Lankan R&B and hip hop artist and music producer ADK (honour), an honour for Members of the Order of Kinabalu, Malaysia