Alison Margaret Arngrim is an American actress and author. Beginning her television career at the age of twelve, Arngrim is a Young Artist Award–Former Child Star "Lifetime Achievement" Award honoree, best known for her portrayal of Nellie Oleson on the NBC television series Little House on the Prairie from 1974 to 1982.

The Young Artist Former Child Star Lifetime Achievement Award is an honorary Young Artist Award bestowed by the Young Artist Association to recognize former child actors and/or child singers for lifetime achievement within the motion picture, television and radio industries. In recent years, the award has also been known as the Mickey Rooney Award, in honor of former child star Mickey Rooney, however, the spirit of the award has remained essentially the same since its inception.