NDB may refer to:
Finance National development bank, set up by a country's government to improve that country's economy New Development Bank, a development bank jointly operated by the BRICS nations NDB Bank, Sri Lankan commercial bank
Politics/military Do not let Belgrade drown (Ne davimo Beograd), a political party in Serbia Nachrichtendienst des Bundes ("Federal Intelligence Service"), one of the Swiss intelligence agencies National Defense Battalions (Iraq) (1961–2003), Iraqi Kurdish paramilitary units Nuclear depth bomb, a naval weapon
Technology NDB Cluster, a database storage engine Next DB, an alternate Python client library for the Google App Engine datastore Non-directional beacon, a fixed radio transmitter used as a navigational aid
Other Nerima Daikon Brothers, an anime series Neue Deutsche Biographie, a German reference work
See also NNDB, the Notable Names Database