Spirulina may refer to:

Biology

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  • Spirulina (genus), a genus of cyanobacteria (blue-green algae)
  • Spirulina (dietary supplement), a cyanobacterium product and biomass that can be consumed by humans and other animals
    • Arthrospira, a genus of cyanobacteria closely related to the Spirulina genus, with three species that make up the above dietary supplement, despite its name
  • Spirulina (suborder), a group of cephalopods
    • Spirula, the only extant member of that suborder

See also

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  • Spiralinella, a genus of very small sea snails, pyramidellid gastropod mollusks, or micromollusks
  • Spirolina, is a genus of foraminifera in the family Peneroplidae