HBD may refer to:

Entertainment

• HBD, an episode in High Maintenance
• HBD, a single by Bassagong
• "HBD (Birthday Mo)", a song by Skusta Clee

Organizations

• HBD Venture Capital, a business incubator and venture capital founded by Mark Shuttleworth
• HB Dudelange, a handball club from Dudelange, Luxembourg
• Howard Brothers Discount Stores, a former discount store chain
• Health Biotechnology Division, in National Institute for Biotechnology and Genetic Engineering
• Hybrid, a warez group

Science and technology

• Has been drinking, a medical abbreviation
• HBD, helicase binding domain; a domain of the DNA primase DnaG
• Hemoglobin D (HbD), a type of hemoglobin
• Hemoglobin subunit delta (HBD), a protein that in humans is encoded by the HBD gene
• Hoja blanca disease, a disease caused by rice hoja blanca tenuivirus
• Hot bearing detector, a type of a defect detector
• Human biodiversity; see Human genetic variation
• Hbd, IMA symbol for Humboldtine
• Torrenticolidae (CoL taxon identifier)

Transport

• Habaraduwa railway station, Sri Lanka (station code)
• Hebden Bridge railway station (National Rail station code)
• Hebi East railway station, China (station code)
• Hoshangabad railway station, Madhya Pradesh, India (station code)

Other uses

• Habi Airport, Papua New Guinea (IATA code); see List of airports by IATA airport code: H
• HBD, Higher Banking Diploma offered by Emirates Institute for Banking and Financial Studies