Mikhail Ashenbrenner

September 9], 1842  – November 11, 1926) was a Russian revolutionary, and one of the leaders of the Military Organisation of the Narodnaya Volya (People's Will), the group that carried out the assassination of the Tsar Alexander II.

His father was a russified German, who worked as a military engineer, his mother was the daughter of General Mikhail Naumov, a veteran of the 1812 war against the French.

Ashenbrenner was delegated to go round the military circles across Russia, enlist correspondents for a military-revolutionary journal and recruit delegates for a congress of local groups, but while he was doing so, the military wing of Narodnaya Volya was eliminated by mass arrests, after being betrayed by the police informer, Sergey Degayev.

Ashenbrenner was arrested in March 1883, and was a defendant at the Trial of the 14, alongside Vera Figner and others, in September 1884.

His memoirs were published in the journal Byloe in 1906, and reissued as a separate publication with the title The Military Organisation of People's Will in 1942.