Jonathan Dimbleby (born 31 July 1944, Aylesbury, Buckinghamshire) is a British presenter of current affairs and political radio and television programmes, a political commentator and a writer. He is the son of Richard Dimbleby and younger brother of British TV presenter David Dimbleby.
Dimbleby began his career at the BBC in Bristol in 1969. In 1970 he joined The World at One as a reporter where he also presented The World This Weekend. In 1972 he joined ITV's flagship current affairs programme This Week and over the following six years reported on crises in many parts of the world. His coverage of the 1973 Ethiopian famine, The Unknown Famine, was followed by TV and radio appeals which raised a record sum nationally and internationally. His report, for which he won the SFTA Richard Dimbleby Award, contributed to the overthrow of the Ethiopian Emperor Haile Selassie.