Nicolas Grang (2 January 1854 – 11 April 1883) was a Luxembourgish soldier who died during an expedition to the Congo.

[1] Grang enlisted as a soldier in the Belgian 9th line regiment on 22 June 1876, entered the Military School on 7 May 1877, and was named sub-lieutenant.

[2] On 30 October 1881 he was seconded to the Military Cartographic Institute, and on 18 January 1882 joined the Comité d'études du Haut-Congo.

[2] Grang was assigned to a group led by Henry Morton Stanley tasked with exploring the upper Congo River.

[2] In August 1882 Grang came to the aid of the scientific expedition of Eduard Pechuël-Loesche, which was attacked in Mowa.

Stanley would himself bring the lighter and the steamer Royal, which had been serving the stretch between Isangila and Manyanga, using 300 newly-arrived African workers.

Grang, suffering from recurring fevers, continued to actively help prepare for the expedition to the Stanley Falls.

[2] Grang caught cold during a tornado one afternoon, failed to recover and died on 11 April 1883.