MNU Views 8 meanings found MNU frequently appears on official records to indicate a missing middle or maiden name, and elsewhere can refer to a generic menu placeholder, MidAmerica Nazarene University, or various multinational entities. Miscellaneous Multi National United Governmental Middle Name Unknown Maiden Name Unknown Academic & Science MidAmerica Nazarene University Regional Maulmyine, Burma ( Myannmar) Computing Advanced macro (HP NewWave) Menu (many) Business Muniholdings New York Insured Fund I