Count Lazarus IV Henckel von Donnersmarck (23 May 1835 – 18 December 1914) was a German politician and landowner.

He was a founding member of the Centre Party and sat in the Prussian House of Representatives from 1870 to 1876 and in the Reichstag from 1884 to 1887.

On 4 August 1858, he married Countess Maria von Schweinitz und Krain, Baroness zu Kauder.

They had several children: Henckel von Donnersmarck managed his 677-acre estate in Romolkwitz and owned shares in the Fideikommiss Beuthen as well as several coal mines.

[1] He was Catholic,[3] and was made a Knight of Honour and Devotion of the Sovereign Military Order of Malta.