XDB may refer to:
Software
- xBase (xDB) - a family of database management systems and related programming languages
- Xbase (formerly known as XDB) - a software library from the xBase family
- XDB Enterprise Server - a historical product from the xBase family
- Oracle XML DB - an Oracle Database feature
- EMC Documentum xDB - a native XML database
Other
- Gare de Lille Europe (XDB IATA code) - a railway station and an international airport in Lille, France.
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