Pope Pius VIII issued one papal encyclical during his reign as Pope: No.Title (Latin)SubjectDate1.Traditi humilitatiCondemnation of liberalism, freemasonry and certain Bible translation. On the sacrament of marriage24 May 1829
References
External links
List of encyclicals of Pope Pius VIII collected on page vatican.va with their full texts List of encyclicals of Pope Pius VIII collected on papalencyclicals.net (fragments)