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[1] and was drawn to the Social Democratic Party through his involvement in the ironworker's trade union movement.

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[2] fighting the foreign troops of the interventionists.

Jenő Landler died in 1928 in exile in Cannes.