Constance Elaine Trimmer Willis is an American science fiction writer known for her accessible prose and likable characters. She is one of the most honored science fiction writers of the 1980s and 1990s.
She has won, among other awards, ten Hugo Awards and six Nebula Awards and the Damon Knight Memorial Grand Master Award from the Science Fiction Writers of America (SFWA).
She lives in Greeley, Colorado with her husband Courtney Willis, a professor of physics at the University of Northern Colorado. She also has one daughter, Cordelia.