Dora, Countess Russell (née Black; 3 April 1894 – 31 May 1986) was a British author, a feminist and socialist campaigner, and the second wife of the philosopher Bertrand Russell. She was a campaigner for contraception and peace. She worked for the UK-government-funded Moscow newspaper British Ally, and in 1958 she led the "Women's Peace Caravan" across Europe during the Cold War.