Since the late nineteenth century, Orthodox Arab laymen had organised themselves into associations starting in the main cities of Palestine, a dynamic which quickly spread to Transjordan, leading to the creation of local Orthodox committees in most parishes. This chapter considers the history of the Greek Orthodox associations in Transjordan from 1925 to 1950 and the influence of regional networks in the structuration of religious, social and intellectual life in Amman and more generally Transjordan. By approaching cultural diplomacy “from below”, this chapter highlights the pivotal role of Orthodox laity in promoting cultural, intellectual and political production in Transjordan. Through those activities they could negotiate local sovereignty but also political and communal space, away from the influence of the Patriarchate of Jerusalem.