Diane Keaton · Donald Trump Were Diane Keaton and Donald Trump alive at the same time? Yes. Diane Keaton and Donald Trump were alive at the same time for 79 years, from 1946 to 2025. Diane Keaton was under a year old when Donald Trump was born.Both were 79 when Diane Keaton died. Diane KeatonAmerican actress and film directorBorn 5 January 1946 · died 11 October 2025, aged 79Donald TrumpPresident of the United StatesBorn 14 June 1946 · living, 80 as of September 2026 Albert EinsteinRonald ReaganDiane KeatonDonald TrumpVladimir PutinMichael JacksonBarack Obama Diane Keaton and Donald Trump 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.