1927 U.S. National Championships – Men's Singles

Men's Singles
1927 U.S. National Championships
Champion	René Lacoste
Runner-up	Bill Tilden
Final score	11–9, 6–3, 11–9

René Lacoste defeated Bill Tilden 11–9, 6–3, 11–9 in the final to win the Men's Singles tennis title at the 1927 U.S. National Championships. It was Lacoste's second U.S. Championships title and his fifth Grand Slam title overall.

Seeds

The tournament used two lists of eight players for seeding the men's singles event; one list of U.S. players and one for foreign players. René Lacoste is the champion; others show in brackets the round in which they were eliminated.

1. Bill Tilden (Finalist)
2. Bill Johnston (Semifinalist)
3. Manuel Alonso (Quarterfinalist)
4. Frank Hunter (Semifinalist)
5. George Lott (First round)
6. Richard Norris Williams (First round)
7. Lewis White (Third round)
8. John Doeg (Third round)

1. René Lacoste (Champion)
2. Henri Cochet (Third round)
3. Jean Borotra (Quarterfinalist)
4. Jacques Brugnon (Quarterfinalist)
5. Jean Washer (Third round)
6. Jack Wright (Third round)
7. Yoshiro Ohta (Second round)
8. Ryuki Miki (First round)

Draw

Final eight

	Quarterfinals									Semifinals									Finals
		Bill Tilden	6	3	10	6
		Jean Borotra	1	6	8	1
											Bill Tilden	14	6	4	9
											Frank Hunter	12	1	6	7
		Frank Hunter	4	5	6	6	6
		John Hennessey	6	7	0	3	4
																				Bill Tilden	9	3	9
																				René Lacoste	11	6	11
		Bill Johnston	3	6	6	6
		Jacques Brugnon	6	2	4	4
											Bill Johnston	2	6	4	1
											René Lacoste	6	2	46	6
		Manuel Alonso	2	6	4	1
		René Lacoste	6	2	6	6