Nancy Werlin is an American writer known for her young-adult novels. Born on October 29, 1961, in Salem, Massachusetts, she has made significant contributions to the genre.

Werlin writes a range of young adult fiction including New York Times bestselling fantasy, Edgar-award winning suspense, and National Book Award-honored realistic novels. Her diverse writing portfolio showcases her ability to blend different genres and capture the attention of her readers.

Her newest book is the comedy Zoe Rosenthal is Not Lawful Good.