Coordinates: 18°28′30″S 70°18′52″W / 18.47500°S 70.31444°W / -18.47500; -70.31444

The XV Arica and Parinacota Region (Spanish: XV Región de Arica y Parinacota) is one of Chile's 15 first order administrative divisions. It is the country's newest region, created under Law 20.175. It became operational on 8 October 2007.