Photinus or Photeinos (, 'bright') is a Greek given name.

It is commonly associated with Photinus of Sirmium (died 276), a Christian bishop and heresiarch.

Other people with the name include:

Photinus of Thessalonica (fl. late 5th century) Photeinos (strategos) (fl. 820s), Byzantine commander

See also Photios (name) Fotino (disambiguation) Photinus (beetle), genus of fireflies