Holz is a German surname meaning wood or timber, and may refer to:
Arno Holz (1863–1929), German poet and dramatist
Karl Holz (executive) (born 1952), current chairman and CEO of Euro Disney SCA
Karl Holz (Gauleiter) (1895–1945), NSDAP Gauleiter of Franconia and SA Gruppenführer
Karl Holz (violinist) (1798–1858), Austrian violinist and friend of Beethoven
Richard E. Holz (1914–1986), American brass band composer
Justa Holz-Mänttäri, translation scholar