1984 US Open – Men's singles
John McEnroe defeated Ivan Lendl in the final, 6–3, 6–4, 6–1 to win the men's singles tennis title at the 1984 US Open. It was Lendl's third consecutive runner-up finish at the US Open.

Jimmy Connors was the two-time defending champion, but he was defeated by his rival McEnroe in the semifinals, in the last match between the two at a major singles tournament.

Seeds

Draw

Finals

Top half

Section 1

Section 2

Section 3

Section 4

Bottom half

Section 5

Section 6

Section 7

Section 8

External links
 Association of Tennis Professionals (ATP) – 1984 US Open Men's Singles draw
1984 US Open – Men's draws and results at the International Tennis Federation

Men's singles
US Open (tennis) by year – Men's singles