Maggie Stiefvater (born 1981) is an American writer of Young Adult fiction. She currently lives in Virginia.
Stiefvater published her first novel, Lament, in 2008. Before Lament had been released, she sold the rights to Ballad, the sequel to Lament, and to Shiver, the first book in the trilogy The Wolves of Mercy Falls. Shiver spent more than 40 weeks on the New York Times Bestseller List. In 2010, Linger debuted at the number one spot on the New York Times Bestseller List. There are over 1.7 million copies of The Wolves of Mercy Falls series in print and more than thirty-six foreign editions have been licensed.
In 2011, Stiefvater published The Scorpio Races, which received 5 starred reviews and was named a Michael L. Printz Award Honor Book.