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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