| 1927 U.S. National Championships | ||||
|---|---|---|---|---|
| Date | September 12–17 (M) August 22–30 (W) | |||
| Edition | 47th | |||
| Category | Grand Slam (ITF) | |||
| Surface | Grass | |||
| Location | Forest Hills, Queens New York City, New York | |||
| Venue | West Side Tennis Club | |||
| Champions | ||||
| Men's singles | ||||
 René Lacoste[1] | ||||
| Women's singles | ||||
 Helen Wills[1] | ||||
| Men's doubles | ||||
| Bill Tilden /Frank Hunter[2] | ||||
| Women's doubles | ||||
 Kitty McKane Godfree /Ermyntrude Harvey[3] | ||||
| Mixed doubles | ||||
| Eileen Bennett /Henri Cochet[4] | ||||
| ||||
The1927 U.S. National Championships (now known as theUS Open) was atennis tournament that took place on the outdoorgrass courts at theWest Side Tennis Club, Forest Hills inNew York City, New York. The women's tournament was held from August 22 until August 30 while the men's tournament ran from September 12 until September 17. It was the 47th staging of theU.S. National Championships and the fourthGrand Slam tennis event of the year. This edition saw the introduction of seedings in the draw which were meant to prevent the best players from meeting each other in the early rounds of the tournament.
René Lacoste defeatedBill Tilden 11–9, 6–3, 11–9
Helen Wills defeatedBetty Nuthall 6–1, 6–4
Bill Tilden /Frank Hunter defeatedBill Johnston /R. Norris Williams 10–8, 6–3, 6–3
Kitty McKane Godfree /Ermyntrude Harvey defeatedBetty Nuthall /Joan Fry 6–1, 4–6, 6–4
Eileen Bennett /Henri Cochet defeatedHazel Hotchkiss Wightman /René Lacoste 6–2, 0–6, 6–3
| Preceded by | Grand Slams | Succeeded by |