Manuchihr,[1] Minuchihr[2] or Manuchehr I (Persian: منوچهر) was the eleventh Shah of Shirvan.
Starting from his rule, the Shirvanshahs favoured names from the pre-Islamic Iranian past and claimed descent from characters such as the Sasanian monarch Bahram V Gur (r. 420–438).
Manuchihr tried to repel them from Caucasus, but was soundly defeated at Baku; many prominent commanders of Shirvan were killed, such as one of the nobles Ahmad ibn Khasskin.
In 1032, a combined army from Sarir and Alania invaded Shirvan and seized its capital Shamakhi, killing around 10000 people and pillaging it for 10 days.
During their withdrawal from Shirvan, however, they were attacked and defeated by the people of Derbent who seized the goods for themselves.