Berenson Leon (1882 Warsaw – 23 April 1941 Warsaw) – lawyer and journalist, member of the bar in Warsaw since 1906, defence attorney in political cases (e.g. Józef Mirecki and Henryk Baron).

Member of the Town Council of Warsaw in 1915, employee in the Justice Department of the Provisional Council of State in 1917–1918. He was the co-creator of the judiciary in the newly independent Poland. He worked as a diplomat in the years 1920–1923 and then returned to being a lawyer. Among the clients he defended before the court there were activists of the Polish Socialist Party – Norbert Barlicki and Adam Pragier, who were accused in the Brest trials (1931). Berenson was an activist of the League for the Defence of Human and Civic Rights. In the years 1935–1938 he took part in a campaign supporting amnesty for political prisoners, democratisation of the bar and liquidation of the camp in Bereza Kartuska. He joined the Warsaw-based Democratic Club in 1937 and later became a member of the Democratic Front. He joined the Supreme Bar Council in 1939. Berenson died in the Warsaw Ghetto. Among his publications there is the book Z sali śmierci. Wspomnienia obrońcy politycznego (“From the Death Room. Memories of a Political Defence Attorney,” 1929).

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