Meaning This unisex name means holly garden as well as grey fortress. Origin of Leslie Celtic , Irish Popular Middle Names Marie, Grace, Elizabeth, Emma, Esmeralda, Faye, Isabella, Itzel, Jocelyn, Johana Pronunciation 🔊 Listen Leslie LESSlie, LEZlie Similar Names Levane Fionnghal Holly-May Goldine Flower Griswalde Keriam Litzy Lesleigh D’arcy Year by Year Popularity of Leslie