26 February] 1865) was a Russian officer from the Obolensky family, one of the most active participants in the Decembrist revolt.

Obolensky was a supporter of the unification of the Northern and Southern Societies, and conducted negotiations on this in 1824 with Pavel Pestel.

[1] He was elected chief of staff on the eve of the uprising, and on 14 December 1825, commander of the insurgent forces instead of Sergei Trubetskoy, who failed to show up.

[2] In the course of the uprising, Obolensky was arrested and imprisoned in the Peter and Paul Fortress on December 15 after murdering General Mikhail Miloradovich.

Even before his arrival on 27 August 1826 in Irkutsk, the term of penal servitude was reduced to 20 years.