The Society of Helpers, formerly known as the Society of the Helpers of the Holy Souls, is a Roman Catholic religious congregation of women founded in Paris, France, in 1856, with the objective of assisting the souls in Purgatory through their service to the needy of the world. The Sisters use the postnominal initials of "A.P." in Europe, or, alternately, "H.H.S" in English-speaking countries.