The Union of Communists of Bulgaria (Bulgarian: Sayuz na Komunistite v Balgariya, SKB) is a communist party in Bulgaria, registered in 1995. It has participated in all elections since then, alone or in coalition. The central headquarters of the party is at Sofia, Georgiev Evlogi № 169.
On June 23, 2013, the Central Committee of the Union of Communists in Bulgaria accepted the resignation of its current chairman Kostadin Chakarov (2010-2013), a former adviser to Todor Zhivkov, and elected by an overwhelming majority Pavel Ivanov as the new chairman of the party. Immediately after the proposed modifications to the Central Committee and Political Bureau of authentic leftist party party leadership yields average age 35-40 years.