Terzi is a surname. People with this surname include:
Aleardo Terzi (1870–1943), Italian illustrator and poster artistAmedeo John Engel Terzi (1872–1956), Italian illustrator, brother of AleardoAntonia Terzi (born 1971), Italian aerodynamicistClaudio Terzi, (born 1984), Italian footballerCristoforo Terzi (1692–1743), Italian painterFilippo Terzi (1520–1597), Italian military and civil architect and engineerFrancesco Terzi (c. 1525–1600), Italian painterFrancesco Lana de Terzi, SJ (c. 1631–1687) Italian Jesuit and aeronautics pioneerMehmet Terzi, (born 1955), Turkish marathon runnerDJ Quicksilver (born Orhan Terzi 1965), Turkish-born German DJ and music producer