Meaning Alley is a girl name of Celtic origin, it means 'harmony, peace' and it is mainly used in English. It is a variant form of the name Alana. Origin of Alley Celtic , Irish Popular Middle Names Nicole Pronunciation 🔊 Listen Alley AL-lee Similar Names Aife Alline Allyn Palmyra Arieen Arleigh Arte Iria Ailis Pounamu Year by Year Popularity of Alley