Yevgeny Nikolayevich Kurochkin (??????? ?????????? ????????; 12 July 1940 - 13 December 2011) was a Russian paleornithologist at the Paleontological Institute of the Russian Academy of Sciences.
He served as President of the Menzbier Ornithological Society.
He graduated from the Moscow State University in 1964.
Most of his field work was done in Central Asia, Mongolia, Cuba, and Vietnam.
In 1982, Kurochkin described Ambiortus, which he thought to be the oldest ornithurine (modern-type bird).
Kurochkin named the new species after his peer Georgi Petrovich Dementyev (1898-1969).
In 2011, Kurochkin and Gareth J.
Dyke described Eostrix tsaganica found in Mongolia, the first find of this primitive owl in Asia.Opposing the theropod origin of modern birds, Kurochkin maintained that archosaurs and dinosaurs were two distinct lineages.
He repeatedly questioned the assumption that Archaeopteryx and Enantiornithes were early birds.
According to Kurochkin, those moderately derived theropods became extinct without leaving any descendants.