Hamzeh Mirza Heshmat od-Dowleh (Persian: حمزه ‌میرزا حشمت‌الدوله; died 1880) was a Qajar prince, governor and military officer in 19th-century Iran.

[4] Due to his contributions, Hamzeh Mirza was later rewarded with the governorship of the western city of Qazvin in 1839 by his suzerain Mohammad Shah Qajar (r. 1834–1848), who was also his brother.

In 1847, Hamzeh Mirza became the governor of the eastern Khorasan province, tasked with suppressing the Revolt of Hasan Khan Salar,[3] a power struggle by the Davalu clan of the Qajars.

[7] In August 1847, Hamzeh Mirza defeated Hasan Khan Salar near Bastam, leading to the latters withdrawal to the Turkmens in Akhal.

[8] The misconduct of Hamzeh Mirza's army in Mashhad and its surroundings in the fall of 1848 led to unrest, which significantly increased Hasan Khan Salar's opportunities.

The latter openly rebelled on 25 August 1848, when he had the motavalli-bashi (custodian) Hajji Mirza Abdollah Khoi and darugha (prefect) Ebrahim Soltan killed.

After destroying all heavy weaponry and burning the defensive structures, Hamzeh Mirza accepted Yar Muhammad Khan's suggestion to stay in Ghuriyan during the winter due to the situation in Mashhad.

[14] While en route to Tabriz to start his new position, Hamzeh Mirza met the governor Abbasqoli Khan Mo'tamed od-Dowleh Javanshir at Zanjan.

As a result, they moved toward the Ardabil region and wrote to several Shahsevan and Qaradaghi chiefs, commanding that they gather troops and subdue the Hajji-Khojalu, which seemingly ended in a success.

[15] In 1850, Hamzeh Mirza was ordered by the prime minister Amir Kabir to capture Báb at Chehriq and execute him at Tabriz due to the unrest caused by his followers across the country.

Hamzeh Mirza was reluctant to execute Báb, as he believed it was wrong to kill a seyyed, and was unhappy that Amir Kabir had given him the task, as he expected assignments more aligned with war and conquest.

[3] In 1871, Naser al-Din Shah sent Hamzeh Mirza and several high-ranking officers to the city of Tbilisi to welcome the Russian emperor Alexander II (r. 1855–1881).