The 1930 U.S. National Championships (now known as the US Open) was a tennis tournament that took place on the outdoor grass courts at the West Side Tennis Club, Forest Hills in New York City, United States. The tournament ran from August 28 until September 13. It was the 50th staging of the U.S. National Championships and the fourth Grand Slam tennis event of the year.[1]
| 1930 U.S. National Championships | |
|---|---|
| Date | September 6–13 (M) August 18–23 (W) |
| Edition | 50th |
| Category | Grand Slam (ITF) |
| Surface | Grass / Outdoor |
| Location | Forest Hills, Queens New York City, United States |
| Venue | West Side Tennis Club |
| Champions | |
| Men's singles | |
 John Doeg | |
| Women's singles | |
 Betty Nuthall | |
| Men's doubles | |
| George Lott / John Doeg | |
| Women's doubles | |
| Betty Nuthall / Sarah Palfrey | |
| Mixed doubles | |
| Edith Cross / Wilmer Allison | |
Finals edit
Men's singles edit
John Doeg defeated Frank Shields 10–8, 1–6, 6–4, 16–14
Women's singles edit
Betty Nuthall defeated Anna McCune Harper 6–1, 6–4
Men's doubles edit
George Lott / John Doeg defeated 
Wilmer Allison / John Van Ryn 8–6, 6–3, 4–6, 13–15, 6–4 [2]
Women's doubles edit
Betty Nuthall / Sarah Palfrey defeated Edith Cross / Anna McCune Harper 3–6, 6–3, 7–5 [3]
Mixed doubles edit
Edith Cross / Wilmer Allison defeated Marjorie Morrill / Frank Shields 6–4, 6–4 [4]