Mammaddara (Azerbaijani: Məmməddərə) or Mariamadzor (Armenian: Մարիամաձոր) is a village in the Khojavend District of Azerbaijan, in the disputed region of Nagorno-Karabakh.

The village had an ethnic Armenian-majority population prior to the 2020 Nagorno-Karabakh war, and also had an Armenian majority in 1989.

[2] During the Soviet period, the village was part of the Hadrut District of the Nagorno-Karabakh Autonomous Oblast.

After the First Nagorno-Karabakh War, the village was administrated as part of the Hadrut Province of the breakaway Republic of Artsakh.

Historical heritage sites in and around the village include a cemetery and khachkar from between the 16th and 19th centuries, and the church of St. Minas (Armenian: Սուրբ Մինաս, romanized: Surb Minas) built in 1601.