The Outback Communities Authority (OCA, formerly the Outback Areas Community Development Trust) is a statutory authority in South Australia (SA) created under the Outback Communities (Administration and Management) Act 2009. It has been established to 'manage the provision of public services and facilities to outback communities' which are widely dispersed across a region covering almost 60% of South Australia's land area. The authority has its seat at both Port Augusta which is located outside the Outback area and at Andamooka.