List of Famous people named Alexei

Alexei Vladimir "Alex" Filippenko is an American astrophysicist and professor of astronomy at the University of California, Berkeley. Filippenko graduated from Dos Pueblos High School in Goleta, California. He received a Bachelor of Arts in physics from the University of California, Santa Barbara in 1979 and a Ph.D. in astronomy from the California Institute of Technology in 1984, where he was a Hertz Foundation Fellow. He was a Miller Fellow at UC Berkeley and was subsequently appointed to a faculty position at the same institution. He was later named a Miller Research Professor for Spring 1996 and Spring 2005. His research focuses on supernovae and active galaxies at optical, ultraviolet, and near-infrared wavelengths.

Alexei Nikolayevich Beketov was a Ukrainian and Soviet architect, in the Classical style. He was an honorary Professor at the Imperial Academy of Arts from 1894.

Alexey Maksimovich Fridman was a Soviet physicist specializing in astrophysics, physics of gravitating systems and plasma physics. He discovered new types of instabilities in gravitating media, created the theory of planetary rings and predicted the existence of small Uranus satellites that were later discovered. He also developed hydrodynamic theory of the spiral structure in galaxies. Fridman worked at the Institute of Astronomy of the Russian Academy of Sciences, INASAN, and was professor of Moscow Institute of Physics and Technology and Moscow State University.

Aleksey Aygi is a Russian composer, violinist, and leader of the 4'33" Ensemble.

Alexei Alexandrovich Sitnikov is a former competitive ice dancer. Competing for Azerbaijan with Julia Zlobina, he is the 2013 Golden Spin of Zagreb champion, 2013 Volvo Open Cup champion, 2012 Nebelhorn Trophy silver medalist, and 2013 Winter Universiade silver medalist. They competed at the 2014 Winter Olympics, finishing 12th, and have placed as high as sixth at the European Championships (2014).

Alexey Yevgenyevich Petukhov is a Russian cross-country skier who has competed since 2002.