John Alexander was the defending champion but lost in the final 6–4, 6–4 against Eddie Dibbs.
Seeds All sixteen seeds received a bye to the second round.
Eddie Dibbs (champion) Brian Gottfried (third round) Manuel Orantes (semifinals) Corrado Barazzutti (semifinals) Harold Solomon (quarterfinals) José Higueras (second round) Wojciech Fibak (quarterfinals) Ken Rosewall (second round) John Alexander (final) Arthur Ashe (third round) Jaime Fillol (third round) Tim Gullikson (third round) Stan Smith (second round) Hans Gildemeister (third round) Robert Lutz (second round) Hank Pfister (third round)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
External links 1978 Volvo International draw