XBB may refer to:
- SARS-CoV-2 Omicron variant § XBB, a subvariant of the virus that causes COVID-19
- The aboriginal Lower Burdekin languages of Australia
- The European Monetary Unit used in bond markets
- Blubber Bay Seaplane Base, British Columbia, Canada – see List of airports by IATA airport code: X
This disambiguation page lists articles associated with the title XBB.
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