1991 Bliss Cup
Date	21–28 October
Edition	Only
Category	ATP World Series
Draw	32S / 16D
Prize money	$ 125,000
Surface	Hard / outdoor
Location	Guarujá, Brazil
Venue	Casa Grande Hotel
Champions
Singles
Javier Frana[1]
Doubles
Jacco Eltingh / Paul Haarhuis[2]
← 1991 · Guarujá Open

The 1991 Bliss Cup was a men's tennis tournament held in Guarujá in Brazil and played on outdoor hardcourt. It was part of the 1991 ATP Tour. It was the only edition of the tournament and took place from 21 October through 28 October 1991. Unseeded Javier Frana won the singles title.^[3]

Finals

Singles

Javier Frana defeated Markus Zoecke 2–6, 7–6^(7–1), 6–3

• It was Frana's first singles title of his career.

Doubles

Jacco Eltingh / Paul Haarhuis defeated Bret Garnett / Todd Nelson 6–3, 7–5

• It was Eltingh's 4th title of the year and the 4th of his career. It was Haarhuis' 3rd title of the year and the 4th of his career.