1911 U.S. National Championships – Men's singles
# 1911 U.S. National Championships – Men's singles

Defending champion William Larned defeated Maurice McLoughlin in the Challenge Round 6–4, 6–4, 6–2 to win the men's singles tennis title at the 1911 U.S. National Championships. McLoughlin defeated Beals Wright in the All Comers' Final.

The event was held at the Newport Casino in Newport, R.I. in the United States.

## Challenge round

| Challenge Round | Challenge Round | Challenge Round | Challenge Round | Challenge Round | Challenge Round | Challenge Round |
| - | - | - | - | - | - | - |
| William Larned | William Larned | 6 | 6 | 6 | | |
| Maurice McLoughlin | Maurice McLoughlin | 4 | 4 | 2 | | |

## All Comers' finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Finals | Finals | Finals | Finals | Finals | Finals |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Carlton Gardner | Carlton Gardner | 3 | 4 | 5 | | | | | | | | | | | | | |
| Gus Touchard | Gus Touchard | 6 | 6 | 7 | | | | | | | | | | | | | |
| Gus Touchard | Gus Touchard | 6 | 6 | 7 | | | Gus Touchard | Gus Touchard | 2 | 4 | 3 | | | | | | |
| | | | | | | | Maurice McLoughlin | Maurice McLoughlin | 6 | 6 | 6 | | | | | | |
| Maurice McLoughlin | Maurice McLoughlin | 6 | 6 | 6 | | | Maurice McLoughlin | Maurice McLoughlin | 6 | 6 | 6 | | | | | | |
| Watson Washburn | Watson Washburn | 1 | 2 | 4 | | | | | | | | | | | | | |
| Watson Washburn | Watson Washburn | 1 | 2 | 4 | | | | | | | | Maurice McLoughlin | Maurice McLoughlin | 6 | 4 | 7 | 6 |
| | | | | | | | | | | | | Beals Wright | Beals Wright | 4 | 6 | 5 | 3 |
| Beals Wright | Beals Wright | 6 | 1 | 6 | 10 | 7 | | | | | | | | | | | | Beals Wright | Beals Wright | 4 | 6 | 5 | 3 |
| Nathaniel Niles | Nathaniel Niles | 8 | 6 | 3 | 8 | 5 | | | | | | | | | | | |
| Nathaniel Niles | Nathaniel Niles | 8 | 6 | 3 | 8 | 5 | Beals Wright | Beals Wright | 6 | 6 | 6 | | | | | | |
| | | | | | | | Tom Bundy | Tom Bundy | 4 | 3 | 1 | | | | | | |
| Tom Bundy | Tom Bundy | 6 | 8 | 6 | | | Tom Bundy | Tom Bundy | 4 | 3 | 1 | | | | | | |
| Jed Jones | Jed Jones | 3 | 6 | 3 | | | | | | | | | | | | | |
