Reigning champion Fred Perry defeated Wilmer Allison 6–4, 6–3, 3–6, 1–6, 8–6 in the final to win the men's singles tennis title at the 1934 U.S. National Championships.

[2][3] The tournament used two lists of players for seeding the men's singles event; one for U.S. players and one for foreign players.

Fred Perry is the champion; others show the round in which they were eliminated.

[2]