1. Keisha Castle Hughes, Whale Rider (2003) was 13. (Wow, well would you look at this? Either Jennifer Lawrence or Steinfeld would become #2 if nominated for Best Actress.)
2. Isabelle Adjani, The Story of Adele H (1975) was 20.
3. Keira Knightley, Pride & Prejudice (2005) was 20 going on 21.
4. Ellen Page, Juno (2007) was about to turn 21.
5. Marlee Matlin, Children of a Lesser God (1986) was 21 (She's the youngest winner of all time in this category.)
6. Elizabeth Hartman, A Patch of Blue (1965) was 22.
7. Kate Winslet, Titanic (1997) was 22 and 4 months.
8. Janet Gaynor, Seventh Heaven/Sunrise/Street Angel (1927/1928) was just a few days older than Winslet.
9. Leslie Caron, Lili (1953) was 22½
10. TIE! Julia Roberts, Pretty Woman(1990) and Winona Ryder, Little Women (1994). They were both 23 years and 108 days old when they were nominated. And here's another twin moment: it was the second nomination for both as they'd been previously honored in Best Supporting Actress.
Without having seen the movie, Sasha Stone considers the above list and believes it's possible that Lawrence "could win the whole thing" because "hers is the only truly selfless and heroic contender in the pack. Sure, there are other factors and other contenders – there is Natalie Portman (who may end the year with the most lauded performance) and there is beloved Annette Bening. I don’t think Lawrence is in the same position that Carey Mulligan was last year because Mulligan, though lovable indeed, was not caring for her younger siblings, her sick mother, trying to save their home — all the while delivering a spectacular performance. She’s a big threat. Make no mistake about that."