Christiania may refer to:
- Christiania or Kristiania, names of Oslo (1624–1924). Current expression (from 1925) for the part of Oslo that was founded by King Christian IV.
- Freetown Christiania (or Christiania), a self-proclaimed autonomous neighborhood of Copenhagen, Denmark
- Christiania Township, Minnesota, a township in Jackson County
- Christiania Township, North Dakota, township in Burleigh County
- Christiania Theatre in Oslo, Norway
- Christiania Bank, a former Norwegian bank
- Christiania (brachiopod), a genus of Strophomenid brachiopods found in the Arenig geological group
- Christiania bikes, family tricycle designed in Denmark
|This disambiguation page lists articles associated with the title Christiania.
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