Imperial Earth is a science fiction novel by Arthur C. Clarke, published in 1975. It explores themes of technology, society, and the future of humanity through the lens of a distant future where Earth is a part of a larger interstellar community.

The story follows Duncan Makenzie, a human from Titan, who travels to Earth for a significant event. As he navigates the complexities of human society, he uncovers deep-seated issues related to identity, technology, and the future of civilization.