The 1934 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 September 1 until September 12. It was the 54th staging of the U.S. National Championships and the fourth Grand Slam tennis event of the year.[1] The men's and women's doubles events were held in Longwood Cricket Club in Chestnut Hill, Massachusetts.[citation needed]
| 1934 U.S. National Championships | |
|---|---|
| Date | September 1–12 (M) August 13–18 (W) |
| Edition | 54th |
| 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 | |
 Fred Perry | |
| Women's singles | |
 Helen Jacobs | |
| Men's doubles | |
| George Lott / Lester Stoefen | |
| Women's doubles | |
| Helen Jacobs / Sarah Palfrey Cooke | |
| Mixed doubles | |
| Helen Jacobs / George Lott | |
Finals
editMen's singles
edit Fred Perry defeated Wilmer Allison 6–4, 6–3, 1–6, 8–6
Women's singles
edit Helen Jacobs defeated Sarah Palfrey Cooke 6–1, 6–3
Men's doubles
edit George Lott / Lester Stoefen defeated 
Wilmer Allison / John Van Ryn 6–4, 9–7, 3–6, 6–4 [2]
Women's doubles
edit Helen Jacobs / Sarah Palfrey Cooke defeated Carolin Babcock / Dorothy Andrus 4–6, 6–3, 6–4 [3]
Mixed doubles
edit Helen Jacobs / George Lott defeated Elizabeth Ryan / Lester Stoefen 4–6, 13–11, 6–2 [4]