Wormwood Star may refer to:
- Wormwood (Bible), a star or angel mentioned in the Old Testament and in the Book of Revelations
- A miscarried child of Marjorie Cameron
- The Wormwood Star, a 1956 film starring and about Marjorie Cameron, made by Curtis Harrington
- Wormwood Star, a 2011 biography of Marjorie Cameron by Spencer Kansa