SSNB may refer to:
Islamic Sultanate of Sulu and North Borneo (SSNB), see Moro National Liberation Front National Bureau of Statistics (NBS, ssnb.org), of South Sudan; see List of national and international statistical services
See also SSN (hull classification symbol), a nuclear-powered general-purpose attack submarine SSBN (Ship, Submersible, Ballistic, Nuclear Powered), a type of ballistic missile submarine South Sudan National Bureau of Standards (SSNBS), a member of the Countries in the International Organization for Standardization