No, US Coast Guard Documented vessels operated recreationally are exempt from registration in Hawaii.
All vessels in Hawai’i must be registered with the Department of Land and Natural Resources, Division of Boating and Ocean Recreation (DOBOR). Exceptions include: documented (federally registered) vessels; U.S. Government owned vessels; a ship’s lifeboats used solely for lifesaving purposes; manually propelled vessels; vessels eight (8) feet or less in length and propelled solely by sail; motorboats used only for racing; foreign vessels and those registered in other states that are in Hawaiian waters for sixty (60) days or less. Owners of undocumented vessels may apply for a registration number even if their boat is exempt from Hawai’i’s numbering requirements.