The study is devoted to the question of time, period and forms of existence and changes in the leadership of the organization of the Ukrainian intellectuals “Kobzar”, founded in the early twentieth century in Sevastopol and associated with the name of engineer Levko Matsiievych, who was one of the most prominent Ukrainian activists of national movement in the city in said period of time. According to available data, the secret organization “Kobzar”, nameless at the time, was founded in 1901 on the basis of an amateur workers' theater in the People's House of Sevastopol, which operated as a group of Ukrainian dramatic art lovers under the direction of Levko Matsiievych and Oleksandr Kovalenko. Members of the organization established branches among the employees of the seaport and garrison of Sevastopol, later joining the Ukrainianization of local military units. The organization could be involved in the united autonomous community of Sevastopol, which was part of the General Non-Party Ukrainian Organization. According to available data, in 1905/1906 the organization “Kobzar” either began legal activities under the leadership of Levko Matsiievych or started any at all but data from Matsiievych's biography in 1906–1908 does not allow us to claim that he led the organization “Kobzar” or engaged in public activities in Sevastopol at all. From 1905 to 1907, the organization “Kobzar” was the center of the Ukrainian national and public movement, which united servicemen of the Black Sea Fleet and civilians of Sevastopol. In March–April 1917, virtually all members of the organization “Kobzar” joined the Main Council of the Ukrainian Black Sea Community. Subsequently, existing in various forms under German, Bolshevik, Denikin and Wrangel rule in Crimea, the Ukrainian national formation of Sevastopol ceased to exist in the late 1920s with the establishment of Soviet power on the peninsula.