Keisha Castle-Hughes (New Zealand) (b. 24 March 1990) was aged 13 years 309 days when she was nominated for the Best Actress award on 27 January 2004 for her role of Paikea ‘Pai’ Apirana in Whale Rider (NZ/Ger 2002).
She was 11 when she made the film – her first acting role.
| Name | Born | Film | Nominated | Age |
| Keisha Castle-Hughes (New Zealand) | 24 March 1990 | Whale Rider (NZ/Ger 2002) | 27 January 2004 | 13 years 309 days |
| Isabelle Adjani (France) | 27 June 1955 | L’ Histoire d’Adèle H. (France 1975) | 17 February 1976 | 20 years 235 days |
| Marlee Matlin (USA) | 24 August 1965 | Children of a Lesser God (USA 1986) | 11 February 1987 | 21 years 171 days |
| Kate Winslet (UK) | 5 October 1975 | Titanic (USA 1997) | 10 February 1998 | 22 years 128 days |
| Janet Gaynor (USA) | 6 October 1906 | 7th Heaven (USA 1927), Street Angel (USA 1928) and Sunruse (USA 1927) | 17 February 1929 | 22 years 134 days |
| Leslie Caron (France) | 1 July 1931 | Lili (USA 1953) | 15 February 1954 | 22 years 229 days |