The 2006 Women's British Open was held 3–6 August at Royal Lytham & St Annes Golf Club in Lancashire, England.

It was the 30th edition of the Women's British Open, and the sixth as a major championship on the LPGA Tour.

Sherri Steinhauer, 43, won her second major title, three strokes ahead of runners-up Sophie Gustafson and Cristie Kerr.

It was Steinhauer's third win at the Women's British Open, but the first since it was designated a major in 2001.

This was the final Women's British Open sponsored by Weetabix, which began its 20-year relationship with the event in 1987.