The 2005 Women's British Open was held 28–31 July at Royal Birkdale Golf Club in Southport, England. It was the 29th edition of the Women's British Open, and the fifth as a major championship on the LPGA Tour. Jeong Jang led wire-to-wire and won her first LPGA event and only major title, four strokes ahead of runner-up Sophie Gustafson. Michelle Wie, age 15, tied for third and was the low amateur in her final major before turning professional in the fall.