Meaning A girl's name of Gaelic origin, it means "Gaelic Form of Eileen or Evelyn." Origin of Eihhlin Gaelic , Irish Popular Middle Names Pronunciation 🔊 Listen Eihhlin Similar Names Aileen Evelyne Evelynne Evaline Evaleen Evie Mai Eilionoir Ayleen Ailyn Giorsal Year by Year Popularity of Eihhlin