DHA, Dha and dha may refer to:
Chemicals 3,4-Dihydroxyamphetamine, an amphetamine derivative Docosahexaenoic acid, a 22:6 omega-3 fatty acid Dehydroandrosterone, an endogenous androgenic steroid Dehydroascorbic acid, an oxidized form of ascorbic acid Dehydroacetic acid, a pyrone derivative used as a plasticiser, as a fungicide, as a bactericide, and as a food preservative Dihydroxyacetone, the active ingredient in sunless or self-tanning skincare products 9,10-Dihydroanthracene, a form of anthracene whose center-ring carbons have been reduced Dihydroartemisinin, an antimalarial Dihydroalprenolol, a beta-adrenergic blocker Dehydroalanine, an uncommon unsaturated α-amino acid
Organizations Defence Housing Australia Defence Housing Authority, Pakistan Defence Housing Authority, Islamabad Defence Housing Authority, Karachi Defense Health Agency, a United States agency Department of Humanitarian Affairs, United Nations department DHA Cinema, a movie theatre District health authority, a former type of NHS administrative organisation Drug Houses of Australia, a Singapore pharmaceuticals manufacturer , a Turkish news agency
Linguistics Dha (Indic), a glyph in the Brahmic family of script Dha (Javanese) (ꦝ), a letter in the Javanese script
Other Dah, Ladakh, India Dhahran International Airport Dha (sword) Directory Harvest Attack Disarmament as Humanitarian Action, a research project Doctor of Health Administration, a doctoral degree D.Ha., short for United States District Court for the District of Hawaii