Youngest Oscar winner for Best Actress
- Who
- Marlee Matlin
- Where
- United States (Los Angeles,)
- When
- 31 March 1987
Marlee Matlin (USA, b. 24 August 1965) won the Best Actress award on 30 March 1987 for her role as 'Sarah Norman' in Children of a Lesser God (USA 1986) aged 21 years 218 days.
Previous holder was Janet Gaynor (USA, b. 6 October 1906) who won the Oscar on 16 May 1929 aged 22 years 222 days.
| Name | Born | Film | Won | Age |
| Marlee Matlin (USA) | 24 August 1965 | Children of a Lesser God (USA 1986) | 30 March 1987 | 21 years 218 days |
| Janet Gaynor (USA) | 6 October 1906 | 7th Heaven (USa 1927), Street Angel (USA 1928) and Sunrise (USA 1927) | 16 May 1929 | 22 years 222 days |
| Joan Fontaine (UK/Japan/USA) | 22 October 1917 | Suspicion (USA 1941) | 26 February 1942 | 24 years 127 days |
| Audrey Hepburn (Belgium/UK) | 4 May 1929 | Roman Holiday (USA 1953) | 25 March 1954 | 24 years 325 days |
| Jennifer Jones (UK) | 2 March 1919 | The Song of Bernadette (USA 1943) | 2 March 1944 | 25 years |