| Guy I. Severin | |
| Native Name: | Russian: Гай Ильич Северин |
| Birth Date: | 24 July 1926 |
| Birth Place: | Chudovo, Leningrad Oblast, USSR |
| Death Place: | Tomilino, Moscow Oblast, Russia |
| Monuments: | in Tomilino, Russia |
| Citizenship: | Soviet Union, then Russia |
| Alma Mater: | Moscow Aviation Institute (1949) |
| Years Active: | 1949–2008 |
| Known For: | scientist, engineer, inventor and producer of a number of aerospace life-rescue systems and space-suits |
| Children: | 2 |
Guy Ilyich Severin (Russian: Гай Ильи́ч Севери́н, Gay Ilyich Severin; July 24, 1926 – February 7, 2008) was a Soviet and Russian scientist, engineer, academician of the Russian Academy of Sciences, doctor of technical science, professor, full member of the International Academy of Astronautics, inventor and producer of a number of aerospace life-rescue systems and space-suits.[1]
thumb|left|Bronze bust of Guy Severin
In 1949, he graduated from Moscow Aviation Institute (МАI). From 1947, Severin worked in Flight Research Institute in Zhukovsky, where he was occupied with research and flight test of the aircraft crew rescue and in-flight refuelling systems. A collective of engineers led by Severin worked out some major principles and working prototypes of landing systems and rocket emergency escape slides for Vostok spacecraft.
From 1964, Severin served as Chief Designer, General Designer and, eventually, General Director of the joint-stock company NPP Zvezda, located in Tomilino.
Under his direction, the company developed ejection seats (including well-known K-36), space-suits, life support systems and rocket emergency escape slides for USSR/Russia aircraft, spacecraft and orbiting space stations (starting from Vostok 1 and the special inflatable EVA airlock of the Voskhod 2), an open space manoeuvring unit, etc.
He participated in preparations for Yuri Gagarin's and other Soviet cosmonauts space flights on Vostok, Voskhod and Soyuz spacecraft.
He was married and had two children. Two times wins USSR mountain skiing championship.
Died at a hospital after breaking both legs while skiing on a mountain ski lodge imitation near Moscow on February 7, 2008. The civil funeral was held at the House of Culture Zvezdniy in Tomilino on February 11, 2008. Present among the attendees was Boris Chertok, last remaining colleague of Sergei Korolev.
On July 24, 2008 a memorial to Severin was opened on the territory of the NPP Zvezda in Tomilino - a bronze bust. A number of local officials appeared for the opening ceremony.[2]