20 February] 1874 – 2 April 1951) was a Soviet politician and Bolshevik revolutionary who was for a short period of time, the Chairman of the All-Russian Central Executive Committee.

From 1895, as a student at the Imperial Moscow University, he began to work as a propagandist and organizer of workers' circles.

In the spring of 1899, during the student unrest, he was once again expelled from Moscow, and then left for Switzerland, where he continued his medical education.

Vladimirsky joined Plekhanov's Emancipation of Labor group and collaborated in the foreign organization Iskra.

He was also Deputy of Chairman of Gosplan (the State Committee for Planning) of the USSR from 1926 to 1927 and People's Commissar of Public Healthcare of the RSFSR from 1930 to 1934.