Dorothy Snowden “Dar” Williams (born April 19, 1967) is an American pop folksinger-songwriter from Mount Kisco, New York. Hendrik Hertzberg of The New Yorkerhas described Williams as “one of America’s very best singer-songwriters.”

She is a frequent performer at folk festivals and has toured with such artists as Mary Chapin Carpenter, Patty Griffin, Ani DiFranco, the Nields, Shawn Colvin, Girlyman, Joan Baez, and Catie Curtis.