Heinrich Ritter von Wittek (29 January 1844 – 9 April 1930) was an Austrian politician of the Christian Social Party (CS).

Heinrich Wittek was born in the Austrian capital Vienna, the eldest son of Johann Marzellin Wittek (1801–1876), an officer of the Imperial and Royal Army, who shortly after Heinrich's birth was appointed an educator of the Habsburg archdukes, the sons of Archduke Franz Karl.

The boy grew up at the Austrian court and especially befriended with Archduke Ludwig Viktor, younger brother of Emperor Franz Joseph I, who was almost of the same age.

During Wittek's time in office, the public railroad network of the Imperial Royal Austrian State Railways was significantly enlarged by an extensive construction programme, as decided by the Austrian Imperial Council parliament in 1901, including the Alpine Bohinj and Tauern Railway lines.

A few days later, his CS party colleague Mayor Karl Lueger made him an honorary citizen of Vienna.