Judith Hann (born 8 September 1942) is a broadcaster and writer specialising in science, food and the environment.
In 1997, she appeared in a Shredded Wheat advertisement, in which she used her scientific judgement to inform viewers that the product could possibly help keep their hearts healthy.
In 2006, she presented Two's A Crowd, a series on BBC Radio 4 that searched for the secrets of human identity.
Hann lives on a farm near the small town of Lechlade, in the Cotswolds.
She was married to John Exelby, a former executive at BBC News, who died in 2019; they had two sons.