Tietz is a surname, and may refer to:
Anthony Tietz (1947), research scientist and fermentation expert
Anton Ferdinand Tietz (1742–1810), composer
Gerold Tietz (* November 11 1941 in Horka b. Dauba, Bohemia; † July 24 2009 in Esslingen, Germany) was a German author.
Hermann Tietz (1837–1907), merchant and founder of one of the first German department stores
Hermann Tietz (rabbi) (September 3, 1834, (Birnbaum an der Warthe, today Międzychód), Kreis Birnbaum, Posen district, Germany) was a German rabbi.
Leonhard Tietz (1849–1914), merchant and founder of one of the first German department stores
Marion Tietz (born November 17, 1952) is a former East German handball player who competed in the 1976 Summer Olympics and in the 1980 Summer Olympics.
Oscar Tietz
Phillip Tietz (born 1997), German footballer
Viktor Tietz (1859–1937) Czech–German chess player, chess life organizer and local politician
Named after people with this surname
Kulturkaufhaus Tietz
Tietz syndrome