| Tournament information | |
|---|---|
| Dates | July 29 – August 1, 2010 |
| Location | Sammamish, Washington 47°38′06″N 122°03′25″W / 47.635°N 122.057°W |
| Course(s) | Sahalee Country Club (South & North nines) |
| Organized by | USGA |
| Tour(s) | |
| Statistics | |
| Par | 70 |
| Length | 6,896 yards (6,306 m) |
| Field | 156 players, 69 after cut |
| Cut | 150 (+10) |
| Prize fund | $2,600,000 |
| Winner's share | $470,000 |
| Champion | |
 Bernhard Langer | |
| 272 (−8) | |
| Location map | |
  Sahalee Location in the United States  Sahalee Location in Washington | |
The 2010 U.S. Senior Open was a senior major golf championship and the 31st U.S. Senior Open, held July 29 to August 1 at Sahalee Country Club in Sammamish, Washington, a suburb east of Seattle. It was the first U.S. Senior Open played at the course, which hosted the PGA Championship in 1998.
World Golf Hall of Fame member Bernhard Langer won by three strokes over Seattle native Fred Couples, his second senior major championship victory in as many weeks.