OSA meaning in Community ?

The Order of Saint Augustine, (Latin: Ordo Fratrum Sancti Augustini) abbreviated OSA, is a religious mendicant order of the Catholic Church. It was founded in 1244 by bringing together several eremetical groups in the Tuscany region who were following the Rule of Saint Augustine, written by Saint Augustine of Hippo in the fifth century.

They are also commonly known as the Augustinians or Austin friars, and were also historically known as the Order of Hermits of Saint Augustine (Latin: Ordo eremitarum sancti Augustini; abbreviated OESA).

The order has, in particular, spread internationally the veneration of the Virgin Mary under the title of Our Lady of Good Counsel (Mater boni consilii).