The 1992 Kolynos Cup, also known as the Búzios Open, was a men's tennis tournament held in Búzios, Brazil and played on outdoor hardcourt.

It was part of the World Series category of the 1992 ATP Tour.

It was the second and last edition of the tournament and took place from 2 November through 8 November 1992.

Fifth-seeded Jaime Oncins won the singles title.

[3] Jaime Oncins defeated Luis Herrera 6–3, 6–2 Maurice Ruah / Mario Tabares defeated Mark Keil / Tom Mercer 7–6, 6–7, 6–4