Manz is a surname. Notable people with the surname include:
Beatrice Forbes Manz, American historian Cecilie Manz (born 1972), Danish industrial designer Daniel Manz (born 1987), German taekwondo practitioner Felix Manz (c. 1498–1527), Swiss Anabaptist Hans Peter Manz (born 1955), Austrian diplomat Jacob Manz (1837–1916), American engraver John R. Manz (born 1945), American Roman Catholic bishop Linda Manz (1961–2020), American actress Paul Manz (1919–2009), American composer Sebastian Manz (born 1986), German clarinettist Sümeyye Manz (born 1989), German taekwondo practitioner Wilhelm von Manz (1804–1867), Bavarian Lieutenant General and war minister Wolfgang Manz (born 1960), German pianist