Youngest Oscar nominee for Best Supporting Actor
Who
Justin Henry
Where
United States (Hollywood)
When
Justin Henry (USA, b. 25 May 1971) was nominated in the Best Supporting Actor category on the 25 February 1980, for his role of 'Billy Kramer' in Kramer vs. Kramer (USA 1979) at the age of 8 years 276 days.

 Name  Birth  Film  Nominated Age 
 Justin Henry (USA)  25 May 1971  Kramer vs. Kramer (USA 1979)  25 February 1980   8 years 276 days
 Haley Joel Osment (USA)  10 April 1988  The Sixth Sense (USA 1999)  15 February 2000  11 years 311 days
 Brandon De Wilde (USA)  9 April 1942  Shane  (USA 1953)  15 February 1954  11 years 312 days
 Jack Wild (UK)  30 September 1952  Oliver! (UK1968)  24 February 1969  16 years 147 days
 Sal Mineo (USA)  10 January 1939  Rebel without a Cause (USA 1955)  18 February 1956  17 years 39 days
 River Phoenix (USA)  23 August 1970  Running on Empty (USA 1988)  15 February 1989  18 years 176 days