Stormbreaker may refer to:
- Stormbreaker (novel), a novel by Anthony Horowitz
- Stormbreaker (film), a film based on the novel by Anthony Horowitz
- Alex Rider: Stormbreaker, a video game based on the above film
- Stormbreaker: The Graphic Novel, a comic book written by Antony Johnston and illustrated by Kanako Dameru & Yuzuru Takasaki
- In the Marvel Comics universe, the hammer wielded by Beta Ray Bill