Saint Barnabas was an early Christian mentioned in the New Testament.

Barnabas may also refer to:

• Barnabas (name), a masculine given name or a surname, including a list of people and fictional characters with the name
  • Barnabás, a Hungarian masculine given name
• Barnabas (band), a Christian rock band
• Epistle of Barnabas, of the New Testament apocrypha
• Gospel of Barnabas, of the New Testament apocrypha
• Acts of Barnabas, of the New Testament apocrypha
• Barnabas (EP), a 2021 EP by Kizz Daniel

• Saint Barnabas (disambiguation)
• Barnabus (disambiguation)
• Barnaba (disambiguation)
• Barnaby (disambiguation)
• Barnabas Fund, an international Christian aid agency
• House of St Barnabas, a historic building and charity in London, England
• Varnavas (Greek: Βαρνάβας 'Barnabas'), a town in Greece