Youngest To Win An Oscar

Tatum O'Neal was 10 years old when she won an oscar for best supporting actress in 1974 for her role in the movie Paper Moon. Shirley Temple actually won an honorary oscar when she was just 6 back in 1934, but considering she did not have to beat anybody else it is up to you as to which one you take to be the youngest.
This Post Belongs To People who were the youngest of their kind