Nikolai Nikolaevich Martos (Russian: Николай Николаевич Мартос; 20 November 1858 – 14 October 1933) was a Russian military officer and general of the infantry in the Imperial Russian Army. He served in the Russo-Turkish War (1877–1878), the Russian expedition to China during the Boxer Rebellion, the Russo-Japanese War, and the First World War. During the opening campaign on the Eastern Front in 1914, he commanded the Russian XV Army Corps in Alexander Samsonov's Second Army. Martos's corps fought the German XX Corps at the Battle of Orlau–Frankenau before being drawn into the German encircleme