ADK

ADK may refer to:
 * ADK (automobile), a Belgian automobile manufactured between 1923 and 1930
 * ADK (company) or Alpha Denshi, a video game development company in Japan
 * Adenylate kinase, a phosphotransferase enzyme that plays an important role in cellular energy homeostasis
 * 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
 * Adirondack Mountain Club, a nonprofit organization in New York, New Jersey and Massachusetts
 * Aggressors of Dark Kombat, an arcade game released by SNK and developed by Alpha Denshi Corp, whose acronym is a play on its developer
 * Android Open Accessory Development Kit
 * Asatsu DK, a Japanese advertising firm
 * ADK class diesel multiple unit class of units used on Auckland's suburban network
 * Adak Airport's IATA Code
 * Ardwick railway station's National Rail code
 * ADK, a model for tunnel ionization
 * Adg (also Romanized as Adk), a village in Razavi Khorasan Province, Iran
 * Lycée Français Anne de Kiev
 * Windows ADK, Windows Assessment and Deployment Kit
 * Dinesh Kanagaratnam or A.D.K., Sri Lankan R&B and hip hop artist and music producer