The Blazing World, is a 1666 work of prose fiction by the English writer Margaret Cavendish, the Duchess of Newcastle. Feminist critic Dale Spender calls it a forerunner of science fiction.It can also be read as a utopian work.

The Blazing World tells of a lady shipwrecked on the Blazing World where she is made Empress and uses her power to ensure that it is free of war, religious division and unfair sexual discrimination. This volume also includes The Contract, a romance in which love and law work harmoniously together, and Assaulted and Pursued Chastity, which explores the power and freedom a woman can achieve in the disguise of a man.