The Latin Mass Society (LMS) is a London-based Roman Catholic charity (No. 248388). Founded in 1965, the charity promotes the use and wider provision of the Traditional Latin Mass (the Extraordinary Form) and other sacraments. Working with its network of local representatives, the LMS also organises pilgrimages, retreats, days of recollection, training conferences for priests and servers, conferences for the general public, research and campaigning. It promotes Gregorian chant and the Latin language and also operates a small mail-order shop.