Real space can mean: Space in the real world, as opposed to some mathematical or fantasy space. This is often used in the context of science fiction when discussing concepts related to hyperspace. In mathematics, a space which is not a complex space or a momentum space. These include: Real coordinate space Real manifold Real vector space Real affine space Real spaces can also mean: The book Real Spaces: World Art History and the Rise of Western Modernism, by David Summers.