Star Maker is an influential science fiction novel by Olaf Stapledon, written in 1937. Stapledon undertakes the immense task of describing the entire history of life in the universe. It dwarfs in scale even his 1930 book Last and First Men, which is a history of the human species over two billion years. It tackles philosophical themes such as the essence of life, of birth, decay and death, and the relationship between creation and creator. The narrator starts with a concern at the clash of ideas on Earth and finds analogies to both communism and fascism among the aliens he visits.
A pervading theme is that of progressive unity within and between different civilizations. Some of the elements and themes briefly discussed prefigure later fiction concerning genetic engineering and alien life forms. Arthur C. Clarke considered Star Maker to be one of the finest works of science fiction ever written.