Who won the 2001 US Open women's singles final between the Williams sisters?

Venus Williams won the 2001 U.S. Open women's singles final, defeating her sister Serena Williams 6–2, 6–4.

Venus entered as the defending champion and completed the tournament without losing a set. The victory gave her a second U.S. Open singles title and her fourth Grand Slam singles championship. Serena, already an emerging major champion, was the runner-up.

The match was historically notable because it was the first Grand Slam women's singles final contested by the Williams sisters. It was also the first U.S. Open women's singles final scheduled in American prime time, helping bring their rivalry to a wider television audience.

A common mix-up is reversing the sisters because Serena ultimately won more major singles titles. In 2001, however, Venus was the champion; the sisters later met in eight more Grand Slam singles finals.