1942 U.S. National Championships – Men's singles

Ted Schroeder defeated Frank Parker 8–6, 7–5, 3–6, 4–6, 6–2 in the final to win the men's singles tennis title at the 1942 U.S. National Championships.

Seeds
The seeded players are listed below. Ted Schroeder is the champion; others show the round in which they were eliminated.


 * 1) 🇺🇸 Ted Schroeder (champion)
 * 2) 🇪🇨 Pancho Segura (semifinals)
 * 3) 🇺🇸 Frank Parker (finalist)
 * 4)  Ladislav Hecht (third round)
 * 5) 🇺🇸 Gardnar Mulloy (semifinals)
 * 6) 🇦🇷 Alejo Russell (quarterfinals)
 * 7) 🇺🇸 Bill Talbert (quarterfinals)
 * 8) n/a
 * 9) 🇺🇸 Sidney Wood (third round)
 * 10) 🇺🇸 Seymour Greenberg (quarterfinals)
 * 11) 🇺🇸 Harris Everett (third round)
 * 12) 🇺🇸 George Richards (quarterfinals)

Key

 * Q = Qualifier
 * WC = Wild card
 * LL = Lucky loser
 * r = Retired