ONMS

AcronymDefinition
ONMSOptical Network Management System
ONMSOffice of National Marine Sanctuaries (Silver Spring, MD)
ONMSOrbiter Neutral Mass Spectrometer (US NASA)
ONMSOpen Network Management System
ONMSOptical Network Management System (Astal Point)
ONMSOpieka Nad Magicznymi Stworzeniami (Polish: Care of Magical Creatures; Harry Potter)