| Men's Singles | |
|---|---|
| 1946 U.S. National Championships | |
| Champion |
|
| Runner-up |
|
| Final score | 9–7, 6–3, 6-0 |
Jack Kramer defeated Tom Brown 9–7, 6–3, 6-0 in the final to win the Men's Singles tennis title at the 1946 U.S. National Championships.
The seeded players are listed below. Jack Kramer is the champion; others show the round in which they were eliminated.