Martuni (Armenian: Մարտունի) is a province of Nagorno-Karabakh Republic. It consists of the branch of Nagorno-Karabakh which juts out farthest to the east, almost reaches Stepanakert on the west, and goes a little past Karmir Shuka on the south. The western half has many hills and small mountains, full of small villages, while the eastern half is very flat, with fewer villages, and the larger regional center of Martuni. The farthest parts to the east remain under the control of Azerbaijan. Historically, this area was also known as Myus Haband and Varand.
In 1991 the parliament of Azerbaijan abolished Martuni rayon, incorporating its territory into the neighbouring Azerbaijanirayon of Khojavend.
Martuni province has 36 communities of which 1 is considered urban and 35 are rural.