The Frog Princess is a novel by E. D. Baker. First published in 2002, the story is a spoof on the German fairy tale "The Frog Prince." The 2009 Disney animated musical feature film, The Princess and the Frog, is loosely based on this novel.

"The Frog Prince; or, Iron Henry" is a German fairy tale collected by the Brothers Grimm and published in 1812 in Grimm's Fairy Tales. Traditionally, it is the first story in their folktale collection. The tale is classified as Aarne-Thompson type 440.