Eunan ( ) is a common name:

• Adomnán (679–704), abbot of Iona

• Eunan O'Halpin, Irish academic

• Eunan O'Kane (born 1990), Irish professional footballer

• Eunan O'Neill (born 1982), Irish television presenter

Eunan may also refer to:

• St Eunan's Cathedral (disambiguation), Christian churches

• St Eunan's College, a school

• St Eunan's GAA, a Gaelic football and hurling club