Leonid Portenko

Leonid Oleksandrovych Portenko (; 11 October 1896 – 26 May 1972) was a Soviet ornithologist of Ukrainian origin who carried out extensive zoogeographic studies on the birds of the northern and north-eastern Palearctic realm. He was born in Smila, though most of his career was spent working in, and conducting expeditions from, the ornithological department of the Zoological Institute of the Academy of Sciences of the Soviet Union in Leningrad.

His publications include: 1939, 1941 – Fauna of the Anadyr area 1954, 1960 – The birds of the USSR 1972–1973 – The birds of the Chukchi Peninsula and Wrangel Island 1973 – Fauna of birds of non-polar parts of the Northern Urals 1975 – The birds of zonal steppes and deserts of Central Asia