Baby Jane can refer to:
- What Ever Happened to Baby Jane?, a 1960 novel by Henry Farrell
- What Ever Happened to Baby Jane? (film), a film based on the novel, starring Bette Davis and Joan Crawford
- Baby Jane Hudson, a character from the above work
- Baby Jane (song) by Rod Stewart
- Baby Jane, Christina Aguilera's alias for the 2006 album Back To Basics
- Baby Jane, a Filipina actress (b.1930-d.?)
