Feigelson (Feigelsohn) Leonid Samoylovich (1892 — ?) — engineer, public figure.

In 1919, Leonid Feigelson served as a public prosecutor at the Moscow Revolutionary Tribunal. In 1920, he voluntarily joined the Red Army, serving as an officer for special assignments on the Western Front.

From 1922, he worked as an engineer, later becoming deputy head of the planning and land department, where he participated in the development of the first version of Moscow’s general urban plan.

From 1929, he worked as technical director on the construction of the Stalingrad Tractor Plant, chief engineer of Vostokspetsstroy in Sverdlovsk, and supervised specialized construction works at Uralmash, Chelyabtraktostroy, and Magnitostroy.

From 1934, he worked in the “Soyuznefteizolyatsiya” system in various engineering positions. Under his leadership, thermal insulation works were carried out at some of the largest construction projects of Stalin’s Five-Year Plans.

In 1941, he worked as chief engineer in the NKVD of the Lithuanian SSR on the construction of an airfield, and later held the same position in the Moscow region.

From 1945, he worked as manager of the Baltic branch of the Union Institute for the Design of Trade Enterprises “Soyuzprotorg.”