Paul Allard (b. Rouen 15 September 1841-1916) was a French archaeologist, historian and jurist.He was admitted to the bar and practised law for a short time in his native city, where he became a judge of the civil court. His literary and his historical tastes induced him to abandon his profession and devote himself to the history of the Catholic Church in its first four centuries.He contributed frequently to the Revue des Questions Historiques, of which he became editor in 1904, and to various other publications. In 1874 he translated James Spencer Northcote and W. R. Brownlow's Roma Sotterranea, making many additions and annotations to it.An intimate acquaintance with Giovanni Battista De Rossi and his own studies along various lines, led him to undertake a history of the persecutions suffered by the Christians at the hand of the Roman authorities. Paul Allard and Alexander de Richemont were all closely united to De Rossi by the interests of their common work. The work was planned on very broad lines. Allard had a minute knowledge of Christian archaeology, especially in regard to the Roman Catacombs; he had studied the condition of the Christian slaves, and had a thorough acquaintance with epigraphy and the administrative and constitutional history of Rome.