Otto Holtz
Otto Holtz is the name of the following people:
- Otto Holtz (politician, 1845) (1845–1925), German landowner, member of the Reichstag
- Otto Holtz (politician, 1895) (1895–1983), German politician, district administrator and Lord Mayor of Wittenberg
- Otto Reinhold von Holtz (1757–1828), German-Baltic pastor, man of letters and translator