Adelaide Ames was an American astronomer and research assistant at Harvard University. She was best known for her work on detailed surveys of the brightest extra-galactic spiral nebulae. She contributed to the study of galaxies with her co-authorship of A Survey of the External Galaxies Brighter Than the Thirteenth Magnitude, which was later known as the Shapley-Ames catalog. Ames was a member of the American Astronomical Society. She was a contemporary of Cecilia Payne-Gaposchkin and her closest friend at the observatory.