Julia Baird (née Dykins) (born 5 March 1947) is the younger half-sister of English musician
John Lennon and is the eldest daughter of John 'Bobby' Albert Dykins (1918 – December 1965) and
Julia Lennon (12 March 1914 – 15 July 1958). she also had an older half-sister, Ingrid Pedersen. Her younger sister was Jacqueline 'Jackie' Dykins (born 26 October 1949).