Bobby Riggs defeated Welby Van Horn 6–4, 6–2, 6–4 in the final to win the men's singles tennis title at the 1939 U.S. National Championships.

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

Bobby Riggs is the champion; others show the round in which they were eliminated.

[2]