The Reer Nuur (Somali: Reer Nuur), also known as Nuur Yoonis, is a northern Somali clan, a sub-division of the Makahiil sub-clan of the Gadabuursi clan family.

The Reer Nuur are one of the biggest sub-clans of the Gadabuursi clan family. Historically, they occupied the buffer zone between the Gadabuursi and Isaaq tribes. Historically, when the clan would meet for political affairs, the Reer Nuur would be counted as one separate branch, on equal standing with the Habar Afan, Mahad 'Ase , Aadan Yonis and the Jibril Yonis sub groups of the Gadabuursi family .

The Reer Nuur reside in 3 countries, Djibouti, Ethiopia, and Somaliland.

Within Somaliland, the Reer Nuur reside in the Awdal province, and share the Baki District with the Reer Mohammed (Mahad 'Ase) and Habar Afan, although Dilla District is dominated by them. They also inhabit the Borama District .

Within the Maroodi Jeex province, they reside in the Gabiley District, in towns such as Tog Wajaale, El Bardale, and Gabiley. Within the Hargeisa District, they reside in Hargeisa, in the Stadium and State Park neighborhoods.

Within Djibouti, the Reer Nuur reside in Quarter 4 and 5 of Djibouti (city).

Within Ethiopia, the Reer Nuur reside in the Somali Region, specifically in the Awbare district, the most demographically popular region of the Jigjiga Zone. The Reer Nuur historically have grazed up to Jijiga and make up the majority of the inhabitants of the city of Awbare.

As a member of the Dir clan, the Reer Nuur come under the Makahiil branch of the Gadabuursi. As a member of the Dir clan, the Reer Nuur were a part of the Sultanate of Ifat and the Adal Sultanate. These sultanates were run by the Walashma dynasty, who were originated by the famous Yusuf bin Ahmad al-Kawneyn.