Animorphs is an English language science fiction series of young adult books written by K. A. Applegate and published by Scholastic. The first book of the series was published in June 1996.

Animorphs (also known under the promotional title AniTV and the working title The Changelings) is a 26-episode adaptation made by Nickelodeon of the Scholastic book series of the same name. The series was broadcast from September 1998 to March 2000 in the United States and Canada. The episodes lasted about 30 minutes (including commercials), had stereo sound, and closed captions.

Animorphs toys are animals which transform into characters from the Animorphs book and TV series. They were introduced in 1999 by Hasbro.