Nikolay Aleksandrovich Chub (Russian: Николай Александрович Чуб; born 10 June 1984) is a cosmonaut selected by the Roscosmos space agency in 2012.

Prior to selection as a cosmonaut, Chub obtained a degree in management and informatics from the South-Russian State Technical University (Novocherkassk Polytechnic Institute) in 2006 as the top member of his class.

Prior to his selection as a cosmonaut, Chub directed the astronautics firm Space Tu, LLC.

In 2019 Chub participated to the training ESA CAVES,[2][3] organized by the European Space Agency, held between Italy and Slovenia.

[4] In January 2022 Chub was denied without explanation a visa to the United States to visit the Johnson Space Center and to hold a five-week session there to get acquainted with the American segment of the ISS.