HBD may refer to:

Arts and entertainment HBD, a 2018 episode of American TV and web series High Maintenance "HBD", a 2018 single by Bassagong "HBD (Birthday Mo)", a 2019 song by Skusta Clee "HBD", a song by Seventeen from the 2025 album Happy Burstday

Businesses and organizations HBD Venture Capital ("Here be Dragons"), a venture capital provider founded by Mark Shuttleworth Health Biotechnology Division of National Institute for Biotechnology and Genetic Engineering, Pakistan Hybrid, or HBD, a warez group

Science and technology Has been drinking, a medical abbreviation Helicase binding domain, of the DNA primase DnaG Hemoglobin D (HbD), a variant of hemoglobin HBD (gene), the gene encoding Hemoglobin subunit delta Hoja blanca disease, caused by rice hoja blanca tenuivirus Hot bearing detector, a type of defect detector on railroads Humboldtine (Hbd), a mineral Torrenticolidae, CoL taxon identifier HBD

Transport Habaraduwa railway station, Sri Lanka, station code HBD Habi Airport, Papua New Guinea, IATA airport code HBD Hebden Bridge railway station, England, station code HBD Hebi East railway station, China, station code HBD Hoshangabad railway station, Madhya Pradesh, India, station code HBD

Other uses Higher Banking Diploma program, of Emirates Institute for Banking and Financial Studies

See also Happy Birthday (disambiguation)