Count Wilhelm Otto Albrecht von Bismarck-Schönhausen (1 August 1852 – 30 May 1901) was a German counselor, civil servant and politician, who served as a member of the Reichstag from 1880 to 1881 and president of the Regency of Hanover from 1889 to 1890.

Mount Wilhelm (German: Wilhelmsberg, or in Kuman: Enduwa Kombuglu, or Kombugl'o Dimbin) the highest mountain in Papua New Guinea at 4,509 metres (14,793 ft), part of the Bismarck Range, was named after him by Hugo Zöller.

[1] Both he and his brother fought in the Franco-Prussian War, each holding a lieutenant's commission, as staff officers with the 1st Dragoon Regiment, and received the Iron Cross for gallantry.

In 1879, Bismarck was made secretary to General Edwin Freiherr von Manteuffel, military governor of the then recently ceded provinces of Alsace-Lorraine.

The funeral took place a week later, the same day Wilhelm II planned to unveil a statue to Otto von Bismarck in front of the Reichstag building.