Florence MacMoyer (Irish: Flaithrí Mac an Mhaoir [ˈfˠlˠahɾʲiː mˠək ə ˈwiːɾʲ]; fl. 1662 – 12 February 1713), a native of Ballymoyer, County Armagh, Ireland was the last hereditary keeper of the Book of Armagh, a 9th-century Irish manuscript written mainly in Latin. The document is valuable for containing early texts relating to St Patrick and some of the oldest surviving specimens of Old Irish, and for being one of the earliest manuscripts produced by an insular church to contain a near complete copy of the New Testament.