Kvant (Russian: Квант for "quantum") is a popular science magazine in physics and mathematics for school students and teachers, issued since 1970 in Soviet Union and continued in Russia. Translation of selected articles from Kvant had been published in Quantum Magazine in 1990–2001, which in turn had been translated and published in Greece in 1994–2001.
The idea of the magazine was introduced by Pyotr Kapitsa. Its first chief editors were physicist Isaak Kikoin and mathematician Andrei Kolmogorov. In 1985, its editorial board had 18 Academicians and Corresponding Members of the USSR Academy of Sciences and USSR Academy of Pedagogical Sciences, 14 Doctors of Sciences and 20 Candidates of Science.
All published issues of Kvant are freely available online.
Quantum Magazine was a US-based bimonthly magazine published by the National Science Teachers Association (NSTA) from 1990 to 2001. Some of its articles were translations from Kvant.
In 1999, American Mathematical Society published translation of selected articles from Kvant on algebra and mathematical analysis as two volumes in the Mathematical World series. Yet another volume, published in 2002, included translation of selected articles on combinatorics. 
There were two books with selected articles from Kvant published in France.
- "Quantum (Greek)". Retrieved September 5, 2016.
- 15th anniversary of Kvant
- Kvant archive website
- Tabachnikov, Serge (1999). Kvant Selecta: Algebra and Analysis, I. Mathematical World. 14. American Mathematical Society. ISBN 978-0-8218-1002-6.
- Tabachnikov, Serge (1999). Kvant Selecta: Algebra and Analysis, II. Mathematical World. 15. American Mathematical Society. ISBN 978-0-8218-1915-9.
- Tabachnikov, Serge (2002). Kvant Selecta: Combinatorics, I. Mathematical World. 17. American Mathematical Society. ISBN 978-0-8218-2171-8.
- Aksenteva M S (2000). "The journal Kvant is only 30 years old after all!". Physics-Uspekhi. 43: 1261–1262. doi:10.1070/PU2000v043n12ABEH000906.