Hallie Kate Eisenberg (born August 2, 1992) is an American actress who played Helen Keller in The Miracle Worker. She is the younger sister of comedian Jesse Eisenberg.

She also played Barbara Wigand in the 1999 Touchstone Pictures film The Insider and Little Miss Amanda Martin-age 7 in Bicentennial Man.

In 2010, Hallie left acting to focus more on attending college.