Altab Ali Park is a small park on the Whitechapel Road, in Whitechapel, London. Formerly known as St Mary's Park, it is the site of the old 14th-century, once whitewashed church, St Mary Matfelon, from which Whitechapel gets its name.

Sir John Cass was an English merchant, Tory Member of Parliament and philanthropist. He was also a key figure in the Royal African Company, which was involved in the Atlantic slave trade.