Were John von Neumann and Vladimir Putin alive at the same time?
Yes. John von Neumann and Vladimir Putin were alive at the same time for 4 years, from 1952 to 1957.
John von Neumann was 48 when Vladimir Putin was born.
Vladimir Putin was 4 when John von Neumann died, aged 53.
John von Neumann
Hungarian and American mathematician and physicist
Born 28 December 1903 · died 8 February 1957, aged 53
Vladimir Putin
President of the Russian Federation
Born 7 October 1952 · living, 73 as of September 2026