The flag of Somaliland (Somali: Calanka Soomaaliland; Arabic: علم صوماليلاند) was adopted on 14 October 1996.

The Constitution of Somaliland, as approved on 31 May 2001 by referendum, states at Article 7, that "the flag of the Republic of Somaliland shall consist of three horizontal, parallel and equal sections, the top section, which is coloured green and has inscribed in its midst in white in Arabic language La Ilaha Ill-Allah, Muhammadan Rasulullah (Arabic: لا إله إلاَّ الله محمد رسول الله, 'There is no god except for Allah, and Muhammad is the messenger of Allah'); the middle section is white and has at its centre a black star; and the bottom section is coloured red."

It is based on the official ratio of the Union Flag of the United Kingdom, the former colonial power.

The flag was flown on ships owned by residents of British Somaliland or on government buildings in the territory.

The kudu's head and shoulders were retained and taken off to form the most dominant feature on the new arms, although the antelope's face was now looking straight out at the observer.

Moreover, on the blue quarter, an Arabian dhow in full sail on waves of the sea, with a golden anchor in the base.