2 Mikhail Kalashnikov(Inventor of 'AK-47' Assault Rifle, PK Machine Gun and 'RPK Light Machine Gun')
3 Igor Sikorsky(Aviator)
Igor Sikorsky was a Russian-American aviator known for his pioneering contributions to the development of both helicopters and fixed-wing aircraft. Born in Russia, he immigrated to US as a young man and founded the Sikorsky Aircraft Corporation in 1923. He is also credited for developing the first of Pan American Airways' ocean-crossing flying boats.
4 Sergei Korolev(Scientist)

Sergei Korolev was a Soviet spacecraft designer and rocket engineer who played an important role during the Space Race between the Soviet Union and the United States of America in the 1950s and 1960s. He was largely responsible for developing the R-7 Rocket and launching Yuri Gagarin into space. Sergei Korolev also launched Belka, Strelka, and Laika into space.
5 Peter Carl Fabergé(Jeweller best known for the famous Fabergé eggs made in the style of genuine Easter eggs)

Apart from being the official jeweler of the Russian imperial court, Peter Carl Fabergé also created some of the most innovative jewelry designs, such as the iconic Fabergé eggs. He had also launched workshops in London, Moscow, and Kiev. Later, hounded by the revolutionary government, he fled to Switzerland.
6 Mikhail Lomonosov(Scientist, Polymath, Writer)
Russian polymath Mikhail Lomonosov was born to a fisherman father and left his village later to satiate his hunger for knowledge. Apart from reforming Russian language and literature, he also made the first colored glass mosaic in his country and discovered the atmosphere of Venus. He loved simple life.
7 Vladimir K. Zworykin(Inventor of 'Television Transmitting and Receiving System Employing Cathode Ray Tubes')

Often referred to as the Father of the Television, Russian-American engineer Vladimir K. Zworykin is remembered for inventing the kinescope picture tube, also known as the cathode-ray tube, used in the television. He was associated with the Radio Corporation of America, and his other creations included the iconoscope camera.
8 Andre Geim(Physicist)

Andre Geim is a Russian-born Dutch-British physicist. He has been associated with the School of Physics and Astronomy at the University of Manchester for several years. In 2010, he was awarded the Nobel Prize in Physics jointly with Konstantin Novoselov in recognition of his work on graphene. He is also a recipient of the 2000 Ig Nobel Prize in Physics.
9 Alexander Stepanovich Popov(Physicist)

Alexander Stepanovich Popov was a Russian physicist best remembered for his pioneering work in transmitting radio signals. One of the first inventors to come up with a radio receiving device, Popov's work was contemporaneous with the groundbreaking work of Italian inventor Guglielmo Marconi. Popov's life and career inspired the 1949 biographical film Alexander Popov which was directed by Herbert Rappaport.
10 Leon Theremin(Inventor of the First Electronic Musical Instrument 'Theremin')

One of the pioneers of electronic music, Léon Theremin invented the aetherphone, also known as the theremin, which was the first electronic musical instrument to be mass-produced. He also doubled up as a Soviet spy, eavesdropping on the British, French, and US embassies, using the Buran device and The Thing.
11 Dmitri Ivanovsky(Botanist)

Best remembered for his co-discovery of viruses during his research on the mosaic disease in tobacco, Russian botanist Dmitri Ivanovsky is regarded as one of the pioneers of virology. Interestingly, following his discovery, he didn’t focus on virology much and taught plant anatomy and physiology instead.
12 Pavel Florensky(Theologian)

Russian theologian Pavel Florensky is best remembered for his essay The Pillar and the Ground of Truth. During Stalin’s regime and amid a phase of national atheism, he was sent to jail and also banished to Siberia for his religious beliefs, which he refused to renounce.
13 Mikhail Mikhaylovich Gerasimov(Archaeologist)

Mikhail Mikhaylovich Gerasimov was a Soviet anthropologist and archaeologist. He is credited with developing the first technique of forensic sculpture and discovering the Mal'ta–Buret' culture. Gerasimov is also credited with reconstructing the faces of over 200 people, ranging from neanderthals to homo sapiens.
14 Nikolay Pirogov(Physician, Scientist)

15 Oleg Losev(Physicist, Inventor)

16 Georgy Shpagin(Former Weapon designer best known as the creator of the famous PPSh-41 submachine gun)

17 Rashid Sunyaev(Astrophysicist)

18 Svyatoslav Fyodorov(Ophthalmologist)

Svyatoslav Fyodorov not just made a name for himself as an ophthalmologist but had also stepped into Russian politics, contesting as a presidential candidate. One of the pioneers of refractive surgery, he developed radial keratotomy, the first surgical cure of myopia, or nearsightedness, and a surgical treatment for glaucoma, too.
19 Alexandre Alexeieff(Artist)

Alexandre Alexeieff was a Russian Empire-born French filmmaker, artist, and illustrator. Alexeieff and his wife Claire Parker are credited with inventing an animation technique called totalization as well as the pinscreen animation. His life and career have inspired a couple of documentary films, namely Alexeieff at the Pinboard, Portrait of Alexeieff, and Dreams about Alfeoni.
20 Pavel Yablochkov(Electrical engineer)

21 Boris Rosing(Scientist, Inventor in the field of Television)

22 Stephen of Perm(Painter)

Fourteenth-century Russian Orthodox missionary Stephen of Perm was also a talented painter. He is also remembered for his translation of the Bible from Greek to the Komi language. He also gained the nickname The Enlightener of Perm for introducing the Old Permic script used to write Komi.
23 Andrei Sychra(Musician)

24 Sergey Lebedev(Chemist)

Best remembered for inventing Polybutadiene, a form of synthetic rubber, Sergey Lebedev was associated with many reputed institutes, such as the St. Petersburg University. He also established the Laboratory for Petroleum Refining and led the Laboratory of Synthetic Rubber as its director. His several awards include the Order of Lenin.
25 Boris Borisovich Golitsyn(Physicist)
