Other
- Ark (web series), a 2010 science fiction series by Trey Stokes
- Ark, a literary prize from the Arkprijs van het Vrije Woord
- Ark (Baxter novel), a science fiction novel by Stephen Baxter (published 20 Aug. 2009)
- Biological ark or Refugium
- Knowledge ark, a collection of knowledge preserved in such a way that future generations would have access to said knowledge if current means of access were lost
- Ark (toy company)
- Absolute Return for Kids, an international children's charity based in the United Kingdom
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