Nancy Pearl is an American librarian, best-selling author, literary critic, and the former executive director of the Washington Center for the Book at Seattle Public Library. Her prolific reading and her knowledge of books and literature first made her locally famous in Seattle, Washington, where she regularly appears on public radio recommending books.

She achieved broader fame with Book Lust, her 2003 guide to good reading. Pearl was named 2011 Librarian of the Year by Library Journal. She is also the author of a novel and a memoir.