Franklin Benjamin Richards is a fictional character appearing in American comic books published by Marvel Comics. The character is usually depicted as a supporting character in Fantastic Four. He has been portrayed as a child and as a budding superhero, albeit inexperienced.

Franklin is an immensely powerful being with vast reality-manipulating and psionic powers beyond Omega level mutants, despite not being a mutant himself (though he was believed to be a mutant throughout most of his appearances). He is the young son of Mister Fantastic and the Invisible Woman of the Fantastic Four, the older brother of Valeria Richards, and the nephew of Invisible Woman's younger brother, the Human Torch. His parents named him Franklin Benjamin Richards; his middle name is taken from his godfather Ben Grimm, the Thing. Franklin's first name comes from Franklin Storm, his maternal grandfather. He has started using the code name Powerhouse. During the Dawn of X storyline, Franklin became human again and went back to live a normal, everyday life.