John Forbes Nash · Barack Obama Were John Forbes Nash and Barack Obama alive at the same time? Yes. John Forbes Nash and Barack Obama were alive at the same time for 53 years, from 1961 to 2015. John Forbes Nash was 33 when Barack Obama was born.Barack Obama was 53 when John Forbes Nash died, aged 86. John Forbes NashAmerican mathematician and economistBorn 13 June 1928 · died 23 May 2015, aged 86Barack Obama44th President of the United StatesBorn 4 August 1961 · living, 65 as of September 2026 Albert EinsteinAdolf HitlerRonald ReaganNelson MandelaJohn Forbes NashDonald TrumpVladimir PutinMichael JacksonBarack Obama John Forbes Nash and Barack Obama in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.