Juliusz is a given name. Notable people with the name include:
Juliusz Bardach (1914–2010), Polish legal historianJuliusz Bursche (1862–1942), bishop of the Evangelical-Augsburg Church in PolandJuliusz Bogdan Deczkowski (1924–1998), noted Polish soldier during World War II, and later an engineer and inventorJuliusz Kaden-Bandrowski (1885–1944), Polish journalist and novelistJuliusz Karol Kunitzer (1843–1905), Polish-German industrialist, economic activist, philanthropist, and industrial magnate of ŁódźJuliusz Kleiner (born 1886), Polish historian and literary theoristJuliusz Kossak (1824–1899), Polish historical painter and master illustrator who specialized in battle scenes, military portraits and horsesJuliusz Leo (1861–1918), Polish politician and academicJuliusz Łukasiewicz (1892–1951), Polish diplomatJuliusz Machulski (born 1955), Polish film director and screenplay writerJuliusz Nowina-Sokolnicki (born 1920), Polish politicianJuliusz Konstanty Ordon (born 1810), participant of the Polish November Uprising in 1830–1831Juliusz Petry (born 1890), Polish writer and the first director of Polish Radio in Lwów and Wilno and, after World War II, in WrocławJuliusz Rómmel (1881–1967), Polish military commander and a general of the Polish ArmyJuliusz Słowacki (1809–1849), Polish Romantic poetJuliusz Schauder (1899–1943), Polish mathematician of Jewish originJuliusz Wertheim (1880–1928), Polish pianist, conductor and composerJuliusz Zarębski (1854–1885), Polish composer and pianist, pupil of Franz LisztJuliusz Żórawski (1898–1967), Polish architect, theoretist of architecture, interior designer, professor of Politechnika KrakowskaJuliusz Żuławski (1910–1999), Polish poet, prose writer, literary critic and translatorJuliusz Zulauf (1891–1943), Polish Army major general