Department of Health and Human Services - Formerly, HEW
Haaren High School (SAUO)
Hackney Horse Society (SAUO)
Hand-Held Scanner (CIST)
Harris Hematoxylin Solution (SAUS)
Harte-Hanks, Inc. - NYSE symbol - Formerly, Harte-Hanks Communications
Hawaiian Historical Society (BUAC)
Hawaiian Humane Society (SAUO)
Hawaiian Sugar Planters' Association, Experiment Station, Honolulu, HI - Library symbol - Library of Congress (LCLS)
Headquarters and Headquarters Squadron (SAUO)
Headquarters, Headquarters and Service Battery (SAUO)
Health and Human Services (DICI)
Hearing Handicap Scale - Medicine (EDAA)
HEHF information and scheduling system (SAUS)
Helicopter Handling System (SAUS)
Helpers of the Holy Souls - France (BUAC)
Hereditary Hemolytic Syndrome - Medicine (MELL)
Hex Head Squib
Hex Head Steel (IAA)
HHMI USA, Everett, WA - Manufacturer code for watercraft hull identification number (USCG)
High High Star (ACAE)
High Strength Steel (EDCT)
Historical Harp Society (BUAC)
Historic Heritage Strategy (SAUO)
Home Health Services (MELL)
Horse Hemolyzate Supernatant
Hospital and Health Services (SAUO)
Huguenot Historical Society (EA)
Human Head Simulator (SAUS)
Hungarian Historical Society - Australia
Hunter High School (SAUO)
Hypothenar Hammer Syndrome - Medicine
Office of Health and Human Services (SAUS)
Society of Helpers (TOCD)
Society of Helpers of the Holy Souls - Roman Catholic women's religious order
US Department of Health and Human Services (GNE)
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