What does LUU stand for?

Illumination Unit (MCD)

Laura - Australia - Airport symbol - Obsolete (OAG)

Louisiana State University, Baton Rouge, LA - OCLC symbol (OCLC)

Lumba-Yakkha - Language code (ETLW)

- The Lug Boat Co., Northglen, CO - Manufacturer code for watercraft hull identification number (USCG)