HLF may refer to:
HLF (gene), Hepatic Leukemia Factor - a human gene and the protein encoded by it Hapag-Lloyd Flug, former German airline, ICAO code Herbalife, US MLM company, NYSE symbol Heritage Lottery Fund, a British grant-giving organisation Hillfoot railway station, in Scotland Hiram Leong Fong, former United States Senator from Hawaii Histoire littéraire de la France, a history of French literature Holy Land Foundation for Relief and Development, an American Islamic charity Huddersfield Literature Festival, in England Hultsfred Airport, in Sweden Hyderabad Literary Festival, in India