1963 U.S. National Championships – Men's singles
| Men's singles | |
|---|---|
| 1963 U.S. National Championships | |
| Champion | Rafael Osuna |
| Runner-up | Frank Froehling |
| Score | 7–5, 6–4, 6–2 |
| Draw | 128 |
| Seeds | 8 |
Rafael Osuna defeated Frank Froehling 7–5, 6–4, 6–2 in the final to win the men's singles tennis title at the 1963 U.S. National Championships.