Sergey Semyonovich Khabalov (21 April [3 May] 1858 — 1924) was a Russian military leader of Ossetian origin and the commander of the Petrograd military district in 1917.
On 13 June 1916 he was recalled to the capital and during the February Revolution, on 24 February 1917, appointed as chief of the Petrograd military district. Most of the troops refused to obey him and Khabalov fully lost control of the army units. He was arrested on the 28th and imprisoned in the Peter and Paul fortress and in Summer questioned by the Extraordinary Commission of Inquiry for the Investigation of Illegal Acts by Ministers and Other Responsible Persons of the Czarist Regime. He was released after the October Revolution, and dismissed from service, with uniform and pension.
In 1919 he went to the South of Russia. On 1 March, 1920, he was evacuated from Novorossiysk to Thessaloniki. He died in Thessaloniki in an American hospital.