Emma Katherine Walton Hamilton (née Walton; 27 November 1962) is a British-American children's book author, theatrical director, and actress. She is an instructor in the MFA program at Stony Brook Southampton, where she serves as Director of the Southampton Children's Literature Fellows program and the Young Artists and Writers Project (YAWP). She is the daughter of singer and actress Dame Julie Andrews and set/costume designer Tony Walton.