Downley is a village and civil parish in Buckinghamshire, England, which was included in Wycombe district before its abolition. It is high in the Chiltern Hills, overlooking the town of High Wycombe, although today it is almost indistinguishable from the urban spread of the latter town. The central part of the parish is the common, this extends over about 56 acres. It is part of the Chilterns Area of Outstanding Natural Beauty.