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Around the world, Etain (Etain , Étain) is a very rare primarily feminine, but very seldom masculine first name. The given name Etain is habitual in Northern Europe, particularly Ireland, where it is a rare girly name, and the United Kingdom, where it is a very rare largely feminine, but seldom male name. Much less frequently, Etain is the last name as well as the forename.
Etain is also a name for the fictitious and mythical characters: Etain , character in Centurion and Etain , the operatic character in the opera The Immortal Hour.