1975 U.S. Clay Court Championships – Men's singles

Jimmy Connors did not defend his title, he chose to play in North Conway instead. Third-seeded Manuel Orantes won the championship for the second time and $16,000 first-prize money by defeating Arthur Ashe in the final.

Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. • #🇦🇷 Guillermo Vilas (semifinals)

• #🇺🇸 Arthur Ashe (final)

• #🇪🇸 Manuel Orantes (champion)

• #🇲🇽 Raúl Ramírez (second round)

• #🇳🇿 Onny Parun (semifinals)

• #🇺🇸 Cliff Richey (first round)

• #🇺🇸 Brian Gottfried (first round)

• # Jaime Fillol (quarterfinals)

• #🇺🇸 Eddie Dibbs (quarterfinals)

• #🇮🇹 Adriano Panatta (third round)

• #🇪🇸 Juan Gisbert (quarterfinals)

• #🇺🇸 Billy Martin (first round)

• # Cliff Drysdale (second round)

• #🇧🇷 Thomaz Koch (third round)

• #🇮🇹 Paolo Bertolucci (second round)

• #🇪🇸 José Higueras (second round)