Lady Norah Beatrice Henriette Bradley-Birt (née Spencer-Churchill; 1 September 1875 â 28 April 1946) was an English aristocrat and educationalist.
Bradley-Birt was born in 1875 at Blenheim Palace, Woodstock, Oxfordshire. She was the youngestdaughter of George Charles Spencer-Churchill, 8th Duke of Marlborough and Albertha Spencer-Churchill, Duchess of Marlborough. Her parents wedding was attended by the Edward VII, then Prince of Wales and Alexandra of Denmark, Princess of Wales.
She married Francis Bradley Bradley-Birt, diplomat of the Indian Civil Service and Bengal Commission, on 1 December 1920 at the Chapel Royal in St James's Palace, London. She continued to use her maiden name after her marriage to avoid confusion with another family member. Bradley-Birt and her husband were known for their writings and social work for British India.
Bradley-Birt's brother Charles Spencer-Churchill, 9th Duke of Marlborough, succeeded their father as Duke of Marlborough.
She died in 1946 in Hove, Sussex, aged 70.