Isabella Claude Potbury (1890 – 31 July 1965) was a portrait painter, a member of the Women's Social and Political Union (WSPU) and a militant suffragette who was arrested several times and imprisoned during which she was force-fed. She was awarded the Hunger Strike Medal by the leadership of the WSPU. Isabella Potbury was born in 1890 in Epsom in Surrey, the daughter of Harriet Alice née Clapham (1862–1942) and Cambridge-educated schoolmaster John Albert Potbury (1859–1903). Isabella Claude Spencer died in 1965 at Chelsea in London.