HNL Views 11 meanings found HNL commonly identifies the Honduran lempira currency and the Honolulu International Airport code, and it is also used as a corporate identifier for logistics firms and in internet slang. Medical Human Neuroscience Lab Health Network Laboratories Human Neuromechanics Laboratory Miscellaneous Huntsville National League Highest Network Load Governmental Honolulu International Airport Regional Honduras Lempira Honolulu International Airport, Honolulu, Oahu, Hawaii USA Internet Hole Notha Level Business Horizon North Logistics, Incorporated Horizon North Logistics