1983 US Open – Men's singles
| Men's singles | |
|---|---|
| 1983 US Open | |
| Champion | Jimmy Connors |
| Runner-up | Ivan Lendl |
| Score | 6–3, 6–7(2–7), 7–5, 6–0 |
| Draw | 128 |
| Seeds | 16 |
Defending champion Jimmy Connors defeated Ivan Lendl in a rematch of the previous year's final, 6–3, 6–7(2–7), 7–5, 6–0 to win the men's singles tennis title at the 1983 US Open. It was his fifth US Open singles title, eighth and last major singles title overall, and 100th top-level singles title overall.
This edition of the tournament set an Open Era record for the most five-set matches at a singles major, at 35. It was later surpassed by the 2024 Wimbledon Championships.