Spirulina may refer to:

Biology[edit]

• 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[edit]

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