Photinus or Photeinos (Greek: Φωτεινός, '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

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