Meaning A girl's name of Gaelic origin, it means "Gaelic Form of Eleanor." Origin of Eilionoir Gaelic , Irish +-100%Zoom level changed to 1 Popular Middle Names Pronunciation 🔊 Listen Eilionoir Similar Names Lenore Eihhlin Ella-Grace Ella May Ellia Ella-Mae Silis Giorsal Moibeal Sighle Year by Year Popularity of Eilionoir