The 2006 U.S. Women's Open was the 61st U.S. Women's Open, held June 30 to July 3 at Newport Country Club in Newport, Rhode Island.

The champion was Annika Sörenstam, the winner of an 18-hole playoff on Monday over Pat Hurst by four strokes, 70 to 74.

[2] The two had finished at even par (284) after 72 holes on Sunday, two strokes ahead of Se Ri Pak, Stacy Prammanasudh, and Michelle Wie.

[4][5] American collegians Amanda Blumenherst and Jane Park were the low amateurs and finished tied for tenth.

This was the final full-round playoff in the U.S. Women's Open; the format was changed to a three-hole aggregate for 2007 and first used in 2011.