Alys Nicole Williams (born May 28, 1994) is an American water polo player. She is a member of the United States women's national water polo team, and participated in the 2020 Tokyo Summer Olympics, where she won a gold medal.
Williams was born in Fountain Valley, California to Robert and Constance Williams. She grew up in Huntington Beach and attended Edison High School. She has two sisters. Williams attended UCLA, majoring in psychology.