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