WDB or wdb may refer to:

• .wdb is the Microsoft Works database file extension
• William Denis Browne (1888–1915), a British composer, pianist, organist and music critic of the early 20th century
• Women's Development Bank, a woman's services organization in Venezuela
• Wondabyne railway station railway station code, in Australia
• Woodbridge (Amtrak station) railroad station code, in the United States
• Woodbridge railway station railway station code, in the UK
• a korean k-pop band

This disambiguation page lists articles associated with the title WDB.
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