HDM

HDM may refer to:


 * Haagsche Delftsche Mixed, a Dutch field hockey club based in Den Haag
 * Haddenham & Thame Parkway railway station, in England
 * Hamadan Airport in Iran
 * Harvard Dictionary of Music
 * Haus des Meeres, an aquarium in Vienna, Austria
 * H. D. Moore, American computer security researcher
 * HDM Furniture Industries, including furniture companies Henredon, Drexel Heritage and Maitland-Smith
 * Herzog & de Meuron (HdM), a Swiss architectural firm
 * High Standard HDM, a semiautomatic pistol
 * His Dark Materials, a trilogy of novels by Philip Pullman
 * Hockey Day Minnesota
 * Holistic Data Management
 * Hot dark matter, a form of dark matter
 * House dust mite
 * Hoy de monterrey (Cuban cigar brand)
 * Hard Dynamic Monsters (CS:GO Team)
 * Health Data Movers (a company providing healthcare IT services)