ENGINEER
Leonid Toptunov
1960 - 1986

Leonid Toptunov
Leonid Fedorovych Toptunov (Ukrainian: Леонід Федорович Топтунов, Russian: Леонид Фёдорович Топтунов; 16 August 1960 – 14 May 1986) was a Soviet nuclear engineer who was the senior reactor control chief engineer at the Chernobyl Nuclear Power Plant Reactor Unit 4 on the night of the Chernobyl disaster, 26 April 1986. Read more on Wikipedia
His biography is available in 15 different languages on Wikipedia. Leonid Toptunov is the 293rd most popular engineer, the 768th most popular biography from Ukraine and the 8th most popular Ukrainian Engineer.
Leonid Toptunov was a Soviet senior nuclear engineer best known for his role in the Chernobyl nuclear disaster in 1986, where he was the shift supervisor during the ill-fated safety test that led to the reactor explosion. His actions and decisions during the incident have been the subject of extensive analysis regarding the disaster's causes.
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Among ENGINEERS
Among engineers, Leonid Toptunov ranks 293 out of 389. Before him are Christopher Cockerell, Wilhelm Nusselt, Fulgence Bienvenüe, Marc René, marquis de Montalembert, William Froude, and Hideo Itokawa. After him are Burt Rutan, Viktor Kozin, Joseph Bazalgette, Ron Tauranac, Markus Reiner, and Frederick Terman.
Most Popular Engineers in Wikipedia
Go to all RankingsChristopher Cockerell
1910 - 1999
HPI: 55.92
Rank: 287
Wilhelm Nusselt
1882 - 1957
HPI: 55.92
Rank: 288
Fulgence Bienvenüe
1852 - 1936
HPI: 55.91
Rank: 289
Marc René, marquis de Montalembert
1714 - 1800
HPI: 55.82
Rank: 290
William Froude
1810 - 1879
HPI: 55.78
Rank: 291
Hideo Itokawa
1912 - 1999
HPI: 55.69
Rank: 292
Leonid Toptunov
1960 - 1986
HPI: 55.67
Rank: 293
Burt Rutan
1943 - Present
HPI: 55.55
Rank: 294
Viktor Kozin
1953 - Present
HPI: 55.50
Rank: 295
Joseph Bazalgette
1819 - 1891
HPI: 55.49
Rank: 296
Ron Tauranac
1925 - 2020
HPI: 55.42
Rank: 297
Markus Reiner
1886 - 1976
HPI: 55.39
Rank: 298
Frederick Terman
1900 - 1982
HPI: 55.36
Rank: 299
Contemporaries
Among people born in 1960, Leonid Toptunov ranks 292. Before him are Kyle Gass, Abu Qatada, Michèle Laroque, Alan Krueger, Abel Resino, and Alexandre Czerniatynski. After him are Leland Orser, Maho Shimizu, Katsuyoshi Shinto, Jeffrey Eugenides, Seth Godin, and Anders Hejlsberg. Among people deceased in 1986, Leonid Toptunov ranks 215. Before him are Lothar Bolz, Paul Costello, Yasuzo Masumura, Anton Janda, Thad Jones, and Carlo Biagi. After him are Policarpo Ribeiro de Oliveira, Guillermo Eizaguirre, Constantin Stanciu, Bert Schneider, Tsendiin Damdinsüren, and Alfonso Thiele.
Others Born in 1960
Go to all RankingsKyle Gass
ACTOR
1960 - Present
HPI: 55.71
Rank: 286
Abu Qatada
MAFIOSO
1960 - Present
HPI: 55.71
Rank: 287
Michèle Laroque
ACTOR
1960 - Present
HPI: 55.71
Rank: 288
Alan Krueger
ECONOMIST
1960 - 2019
HPI: 55.71
Rank: 289
Abel Resino
SOCCER PLAYER
1960 - Present
HPI: 55.68
Rank: 290
Alexandre Czerniatynski
SOCCER PLAYER
1960 - Present
HPI: 55.68
Rank: 291
Leonid Toptunov
ENGINEER
1960 - 1986
HPI: 55.67
Rank: 292
Leland Orser
ACTOR
1960 - Present
HPI: 55.62
Rank: 293
Maho Shimizu
SOCCER PLAYER
1960 - Present
HPI: 55.56
Rank: 294
Katsuyoshi Shinto
SOCCER PLAYER
1960 - Present
HPI: 55.56
Rank: 295
Jeffrey Eugenides
WRITER
1960 - Present
HPI: 55.54
Rank: 296
Seth Godin
ECONOMIST
1960 - Present
HPI: 55.51
Rank: 297
Anders Hejlsberg
BUSINESSPERSON
1960 - Present
HPI: 55.49
Rank: 298
Others Deceased in 1986
Go to all RankingsLothar Bolz
POLITICIAN
1903 - 1986
HPI: 55.91
Rank: 209
Paul Costello
ATHLETE
1894 - 1986
HPI: 55.87
Rank: 210
Yasuzo Masumura
FILM DIRECTOR
1924 - 1986
HPI: 55.84
Rank: 211
Anton Janda
SOCCER PLAYER
1904 - 1986
HPI: 55.77
Rank: 212
Thad Jones
MUSICIAN
1923 - 1986
HPI: 55.72
Rank: 213
Carlo Biagi
SOCCER PLAYER
1914 - 1986
HPI: 55.71
Rank: 214
Leonid Toptunov
ENGINEER
1960 - 1986
HPI: 55.67
Rank: 215
Policarpo Ribeiro de Oliveira
SOCCER PLAYER
1907 - 1986
HPI: 55.58
Rank: 216
Guillermo Eizaguirre
SOCCER PLAYER
1909 - 1986
HPI: 55.52
Rank: 217
Constantin Stanciu
SOCCER PLAYER
1911 - 1986
HPI: 55.51
Rank: 218
Bert Schneider
BOXER
1897 - 1986
HPI: 55.45
Rank: 219
Tsendiin Damdinsüren
WRITER
1908 - 1986
HPI: 55.42
Rank: 220
Alfonso Thiele
RACING DRIVER
1920 - 1986
HPI: 55.41
Rank: 221
In Ukraine
Among people born in Ukraine, Leonid Toptunov ranks 768 out of 1,365. Before him are Leonid Buryak (1953), Hermann Kesten (1900), Ruslan Khomchak (1967), Aleksei Kruchyonykh (1886), Eduard Bagritsky (1895), and Alexander Brailowsky (1896). After him are David Cherkassky (1931), Georg Marco (1863), Rosalia Zemlyachka (1876), Nikolai Chebotaryov (1894), Oksana Shvets (1955), and Nikolai Gubenko (1941).
Others born in Ukraine
Go to all RankingsLeonid Buryak
SOCCER PLAYER
1953 - Present
HPI: 55.72
Rank: 762
Hermann Kesten
WRITER
1900 - 1996
HPI: 55.72
Rank: 763
Ruslan Khomchak
POLITICIAN
1967 - Present
HPI: 55.71
Rank: 764
Aleksei Kruchyonykh
WRITER
1886 - 1968
HPI: 55.70
Rank: 765
Eduard Bagritsky
WRITER
1895 - 1934
HPI: 55.70
Rank: 766
Alexander Brailowsky
MUSICIAN
1896 - 1976
HPI: 55.69
Rank: 767
Leonid Toptunov
ENGINEER
1960 - 1986
HPI: 55.67
Rank: 768
David Cherkassky
FILM DIRECTOR
1931 - 2018
HPI: 55.63
Rank: 769
Georg Marco
CHESS PLAYER
1863 - 1923
HPI: 55.62
Rank: 770
Rosalia Zemlyachka
POLITICIAN
1876 - 1947
HPI: 55.62
Rank: 771
Nikolai Chebotaryov
MATHEMATICIAN
1894 - 1947
HPI: 55.61
Rank: 772
Oksana Shvets
ACTOR
1955 - 2022
HPI: 55.60
Rank: 773
Nikolai Gubenko
ACTOR
1941 - 2020
HPI: 55.60
Rank: 774
Among ENGINEERS In Ukraine
Among engineers born in Ukraine, Leonid Toptunov ranks 8. Before him are Valentin Glushko (1908), Yuri Kondratyuk (1897), Stephen Timoshenko (1878), Borys Paton (1918), Dmitry Dmitrievich Maksutov (1896), and Arkhip Lyulka (1908). After him are Markus Reiner (1886), Georgy Langemak (1898), and Sergey Volkov (1973).
Valentin Glushko
1908 - 1989
HPI: 66.79
Rank: 2
Yuri Kondratyuk
1897 - 1942
HPI: 66.26
Rank: 3
Stephen Timoshenko
1878 - 1972
HPI: 63.50
Rank: 4
Borys Paton
1918 - 2020
HPI: 62.69
Rank: 5
Dmitry Dmitrievich Maksutov
1896 - 1964
HPI: 60.40
Rank: 6
Arkhip Lyulka
1908 - 1984
HPI: 56.54
Rank: 7
Leonid Toptunov
1960 - 1986
HPI: 55.67
Rank: 8
Markus Reiner
1886 - 1976
HPI: 55.39
Rank: 9
Georgy Langemak
1898 - 1938
HPI: 55.34
Rank: 10
Sergey Volkov
1973 - Present
HPI: 48.52
Rank: 11
























































