Jenő Landler (23 November 1875 – 25 February 1928) was a Hungarian politician and socialist leader. Born in to a Jewish family, he studied to be a lawyer and was drawn to the Social Democratic Party through his involvement in the ironworker's trade union movement. However, he kept moving politically to the left and became a Communist. After the Hungarian Revolution of 1919, he became people's commissar of interior affairs in the new communist government. He was also a commander of the Hungarian Red Army fighting the foreign troops of the interventionists. After the fall of the Hungarian Soviet Republic he emigrated to Austria where he continued to be a leader of the exiled Hungarian communist movement. Jenő Landler died in 1928 in exile in Cannes. His ashes were taken to Moscow and placed in the Kremlin wall.