• Phoronis is a genus of the horseshoe worm family (Phoronidae), in the phylum Phoronida.

Phoronis may also refer to:

• Various species in the above genus:

• Phoronis australis
• Phoronis ovalis
• Phoronis psammophila

• Phoronis (c. 7th-6th c. BC), an ancient Greek epic poem which told the story of the mythological hero Phoroneus.
• Phoronis (5th c. BC), a lost work by the Greek historian Hellanicus.
• Phoronis, a name for Io, the sister (or descendant) of Phoroneus.

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