the 2000 u.s. women's open golf championship was the 55th u.s. women's open, held july 20–23 at the merit club in libertyville, illinois, a suburb north of chicago and west of waukegan. karrie webb won the first of two consecutive u.s women's opens, five strokes ahead of runners-up cristie kerr and meg mallon. it was the third of webb's seven major titles.