Mashadi Azizbey oghlu Azizbeyov, also spelled Azizbekov (Azerbaijani: Məşədi Əziz bəy oğlu Əzizbəyov; Russian: Мешади Азиз-бек оглы Азизбеков; January 6, 1876 - September 20, 1918) was a Soviet revolutionary of Azerbaijani origin, leader of the revolutionary movement in Azerbaijan, one of the first Azeri Marxists, Provincial Commissioner and Deputy People's Commissar of Internal Affairs, gubernial commissar for Baku.

On the night of September 20, Azizbeyov was executed by a firing squad in a remote location between the stations of Pereval and Akhcha-Kuyma on the Trans-Caspian railway.

Azizbeyov's father was close friends with Zeynalabdin Taghiyev, but he was executed during the rule of the Russian Empire.

He took part in the protest of Saint Petersburg factory workers in 1902, for which he was persecuted, and in the Russian Revolution of 1905, as well as the famous "Mazut" constitution movement in Azerbaijan.

[5] Jalil Mammadguluzadeh gave the first publication of Molla Nasraddin to Azizbeyov for his contributions to education in Azerbaijan at that time.

When the Commune was toppled by the Centro Caspian Dictatorship, a British-backed coalition of Dashnaks, SRs and Mensheviks, Azizbeyov and his comrades were captured by British troops and executed by firing squad between the stations of Pereval and Akhcha-Kuyma of the Transcaucasian Railroad.

[7] The remains of the commissars were reburied at Hovsan Cemetery on 26 January 2009, with participation of Muslim, Jewish and Christian clergy who conducted religious ceremonies.

His wife Khanum Azizbeyova became the chairman of the first women club in 1919 organized by the oil magnate Shamsi Asadullayev.

The first historical novella in Azerbaijani literature, Komissar, by writer Mehdi Huseyn, features Azizbeyov as the main character.

He, along with the other Baku Commissars, was the subject of many films, documentaries, novels and poems of the Soviet Union, notably the 26-lar by Samad Vurgun, the novels Fighting City and Mysterious Baku by Mammad Said Ordubadi, as well as works by Nikolai Tikhonov, Nairi Zarian, Suleyman Rustam, Yeghishe Charents, Mikayil Mushfig, Vasily Kamensky, Paolo Iashvili, Semyon Kirsanov, Mirvarid Dilbazi, and Sergey Yesenin.

[12] The towns of Vayk, Aregnadem and Zarritap, all in Armenia, were officially named Azizbeyov during the Soviet era.

[14] However, an avenue, a street in Baku, villages in the Goygol and Goranboy regions of Azerbaijan, and a city in the Nakhichevan Autonomous Republic are still officially called Azizbeyov.

There are streets named after him in Kazakhstan (Almaty, Taraz), Russia (Volgograd, Astrakhan), Tajikistan (Dushanbe), Ukraine (Kryvyi Rih, Donetsk), and Uzbekistan (Jizzakh).