HJL may refer to:
People H.J.L. Hawkins, of Royal Air Force No. 204 Squadron H.J.L. Dunlop, after whom Dunlop Island is named Harvey J. Levin, (1924–1992) was an American economist famous for his research into radio waves
Other Hamlin Jet, UK company with the ICAO airline code HJL Hejjala railway station, a railway station in India Tsuutaij, a company with the code HJL on the Mongolian Stock Exchange One of the codes used on Canadian veteran licence plates in Newfoundland and Labrador