A–K edit

• Giulio Alberoni (1664–1752), Italian cardinal and statesman
• Giulio Alenio (1582–1649), Italian Jesuit missionary and scholar
• Giulio Alfieri (1924–2002), Italian automobile engineer
• Giulio Andreotti (1919–2013), Italian politician
• Giulio Carlo Argan (1909–1992), Italian politician and art historian
• Giulio Base (born 1964), Italian film director
• Giulio Berruti (born 1984), Italian film and television actor
• Giulio Bizzozero (1846–1901), Italian physician
• Giulio Bosetti (1930–2009), Italian actor and director
• Giulio Brogi (1935–2019), Italian actor
• Giulio Caccini (c. 1545–1618), Florentine composer, significant innovator of the early Baroque era
• Giulio Calì (1895–1967), Italian actor
• Giulio Camillo (c. 1480–1544), Italian philosopher
• Giulio Campagnola (c. 1482–1515), Italian painter
• Giulio Campi (1500–1572), Italian painter and architect
• Giulio Cappelli (1911–1995), Italian footballer
• Giulio Caracciolo (archbishop of Cassano all'Jonio) (died 1599), 16th-century Roman Catholic archbishop
• Giulio Caracciolo (archbishop of Iconium) (born 1672), 17th-century Roman Catholic archbishop
• Giulio Carmassi (born 1981), Italian multi-instrumentalist
• Giulio Carmignani (1813–1890), Italian painter
• Giulio Ceretti (1868–1934), Italian engineer and entrepreneur
• Giulio Cesare (disambiguation), several people
• Giulio Ciccone (born 1994), Italian cyclist
• Giulio Clovio (1498–1578), Italian painter
• Giulio Cybo (1525–1548), Italian noble
• Giulio Doffi (1534–1596), Italian Roman Catholic prelate
• Giulio Donati (born 1990), Italian footballer
• Giulio Einaudi (1912–1999), Italian book publisher
• Giulio Favale (born 1998), Italian footballer
• Giulio Fioravanti (1923–1999), Italian operatic baritone
• Giulio Fiou (born 1938), Italian politician
• Giulio Gabrielli (1604–1677), Italian Catholic cardinal
• Giulio Gabrielli the Younger (1748–1822), Italian Catholic cardinal and diplomat
• Giulio Gallera (born 1969), Italian politician
• Giulio Gaudini (1904–1948), Italian fencer
• Giulio Gavotti (1882–1939), Italian pilot in the Italo-Turkish War and the first pilot to perform an aerial bombardment
• Giulio Giorello (1945–2020), Italian philosopher, mathematician and epistemologist
• Giulio Giuricich (born 1990), South African footballer

L–Z edit

• Giulio Lepschy (born 1935), Italian linguist and teacher
• Giulio Maceratini (1938–2020), Italian politician
• Giulio Maculani (1920–1980), Italian actor
• Giulio Martinat (1891–1943), Italian general
• Giulio de' Medici (1478–1534), better known as Pope Clement VII (1523–1534), 16th-century Catholic pope
• Giulio de' Medici (c. 1533–1600), Italian noble
• Giulio Meotti, Italian journalist
• Giulio Migliaccio (born 1981), Italian footballer
• Giulio Monteverde (1837–1917), Italian sculptor and teacher
• Giulio Natta (1903–1979), Italian chemist, Nobel Prize laureate
• Giulio Oggioni (1916–1993), Italian bishop
• Giulio Orsini (died 1517), Italian condottiero
• Giulio Pace (1550–1635), Italian philosopher
• Giulio Parigi (1571–1635), Italian painter, engraver and architect
• Giulio Parodi (born 1997), Italian footballer
• Giulio Petroni (1917–2010), Italian filmmaker
• Giulio Pittarelli (1852–1934), Italian mathematician and painter
• Giulio Prisco (born 1957), Italian computer scientist
• Giulio Prosperetti (born 1946), Italian labor law scholar and judge
• Giulio Quercini (born 1941), Italian journalist and politician
• Giulio Racah (1909–1965), Italian-Israeli mathematician and physicist
• Giulio Regeni (1988–2016), Italian murder victim
• Giulio Regondi (1823–1872), Italian composer
• Giulio Ricciarelli (born 1965), German-Italian actor
• Giulio Ricordi (1840–1912), Italian musician
• Giulio Rinaldi (1935–2011), Italian boxer
• Giulio Romano (c. 1499–1546), Italian painter
• Giulio Rosati (1587–1917), Italian painter
• Giulio Rospigliosi, better known as Pope Clement IX (1600–1669), 17th-century Catholic pope
• Giulio Salvadori (1862–1928), Italian poet
• Giulio Sanseverino (born 1994), Italian footballer
• Giulio Santagata (born 1949), Italian politician
• Giulio Antonio Santorio (1532–1602), Italian cardinal
• Giulio Saraudi (1938–2005), Italian boxer
• Giulio Sarrocchi (1887–1971), Italian fencer
• Giulio Savelli (1941–2020), Italian politician
• Giulio Scarpati (born 1956), Italian actor
• Giulio Taccon (born 2002), Italian-Chinese pianist
• Giulio Toniolatti (born 1984), Italian rugby union player
• Giulio Tononi (born 1960), Italian neuroscientist and psychiatrist
• Giulio Turcato (1912–1995), Italian painter

• Carlo Ignazio Giulio (1803–1859), Italian mathematician and mechanical engineer