Tor Seidler (born 1952 in Littleton, New Hampshire) is an American author of children's literature. Many of his books feature anthropomorphic animals. Mean Margaret was nominated for a National Book Award, The Wainscott Weasel was named a Notable Children's Book by the American Library Association, and A Rat's Tale was named Best Book of the Year by Publishers Weekly.[4] In 1998, A Rat's Tale was adapted into a puppet film by AugsburgerPuppenkiste‬‬‬‬.20th Century Fox Animation planned to adapt The Wainscott Weasel into a movie, but shelved the concept in 2006.

He studied literature at Stanford University.