Sanag is an administrative region (gobol) in north eastern Somaliland. Sanaag has a long coastline facing the Gulf of Aden to the north, and is bordered by the region of Sahil to the west, Sool to the south and Somalia to the east. The region is disputed by the self-declared Republic of Somaliland and Puntland, a Federal Member State of Somalia. Its capital city is Erigavo. Sanaag is the largest region of Somaliland, accounting for 35% of Somaliland's total land area.

Sahil is an administrative region (gobol) in northern Somaliland with the port city of Berbera as its capital. It was separated from Woqooyi Galbeed and became a province in 1991. In 1998, the Sheikh District of Togdheer was incorporated into Sahil region. The region has a long coastline facing the Gulf of Aden to the north. Sahil borders Awdal to the northwest, Maroodi Jeex to the southwest, Togdheer to the south and Sanaag to the east.