Bur (Tigrinya: ቡር) was a large (vaguely delimited) historical province, across the present-day Ethio-Eritrean border. As happened with other regions, it was divided into Upper Bur and Lower Bur. Its territory covered parts of Agame, the entire Akele Guzay and lands further to the east, including perhaps even the Buri peninsula.
The hagiography of Zemikael Aregawi narrates the people of Bur's rebellion against Kaleb. The same rebellion is recalled by the hagiographic tradition of the Sadqan, the "Righteous ones", who, before going to Metera, Bereknaha, Sorya, etc., together reached the "desert of Bur". Later, some other hagiographies indicate that from the 14th century Bur fell into the sphere of the Ewostateans' religious movement.