The Dikhil Region (Somali: Gobolka Dikhil, Afar: Dikhil Rakaakay) is a region in southern Djibouti. It is bordered by the Regions of Tadjoura to the north, Arta to the northeast, Ali Sabieh to the east. To the west and south, it has a long line with the Djibouti-Ethiopia border adjacent to the Ethiopia Regions of Afar Region and Somali Region. Dikhil Region is the largest Region in Djibouti by area, with a mainland area of 7,200 square kilometres (2,800 sq mi), it is slightly larger than Luxembourg.