The Diamond Age: Or, A Young Lady's Illustrated Primer is a science fiction novel by American writer Neal Stephenson. It is to some extent a Bildungsroman or coming-of-age story, focused on a young girl named Nell, set in a future world in which nanotechnology affects all aspects of life. The novel deals with themes of education, social class, ethnicity, and the nature of artificial intelligence. The Diamond Age was first published in 1995 by Bantam Books, as a Bantam Spectra hardcover edition. In 1996, it won both the Hugo and Locus Awards, and was shortlisted for the Nebula and other awards.

Neal Town Stephenson is an American writer known for his works of speculative fiction. His novels have been categorized as science fiction, historical fiction, cyberpunk, postcyberpunk, and baroque.