Mary Flora Bell (born 26 May 1957) is an English woman who, as a child aged 10–11 in 1968, strangled to death two male toddlers in Scotswood, a district in the West End of Newcastle upon Tyne.
She was convicted in December 1968 of the manslaughter of Martin Brown (aged 4) and Brian Howe (aged 3).Since her release from prison in 1980, she has lived under a series of pseudonyms.
Her identity has been protected by a court order, which has also been extended to protect the identity of her daughter.
In 1998, Bell collaborated with Gitta Sereny on an account of her life, in which she details the abuse she suffered as a child at the hands of her prostitute mother and her clients.