1963 U.S. National Championships – Men's Singles
| Men's Singles | |
|---|---|
| 1963 U.S. National Championships | |
| Champion |
 Rafael Osuna
|
| Runner-up |
 Frank Froehling
|
| Final score | 7–5, 6–4, 6–2 |
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.
The seeded players are listed below. Rafael Osuna is the champion; others show the round in which they were eliminated.
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