Gender Blender (ISBN 0-385-74696-2, 2006) is a young adult novel written by Blake Nelson.

The book explores the differences between males and females and dramatizes it in a way that children will understand.

Both characters face challenges from the differences in the biological bodies that they inhabit and figuring out how to act in accordance with the expectations of others.

The Booklist describes Gender Blender as "Freaky Friday with a gender-bending twist" and recommends it as a comedy that encourages deep thinking, although it noted that the book's ending "is a bit of a jumble".

[3] Publishers Weekly notes the author's "keen understanding of peer pressure and gender stereotyping".