Sarah Jane Brown (née Macaulay; born 31 October 1963) is a British campaigner for global health and education, founder and president of Theirworld, a children's charity, the Executive Chair of the Global Business Coalition for Education and the co-founder of A World at School. She was a founding partner of Hobsbawm Macaulay Communications, a public relations company. She is married to the former Prime Minister of the United Kingdom Gordon Brown.