2006 Brasil Open

The 2006 Brasil Open was an ATP Tour men's tennis tournament held in Costa do Sauipe resort, Mata de São João, Brazil and played on outdoor clay courts. It was the sixth edition of the tournament and was held from 20 to 27 February 2006. Nicolás Massú won the singles title.

Seeds
1 Rankings as of 20 February 2006.

Other entrants
The following players received wildcards into the main draw:
 * 🇧🇷 André Ghem
 * 🇧🇷 Ricardo Mello
 * 🇧🇷 André Sá

The following players received entry from the qualifying draw:
 * 🇪🇸 Nicolás Almagro
 * 🇦🇷 Juan Martín del Potro
 * 🇪🇸 Daniel Gimeno Traver
 * 🇫🇷 Olivier Patience

The following players received entry as lucky losers:
 * 🇪🇸 Iván Navarro Pastor
 * 🇪🇸 Albert Portas

The following player received entry due to a protected ranking:
 * 🇧🇷 Gustavo Kuerten

Withdrawals
Before the tournament
 * 🇦🇷 Agustín Calleri (replaced by Portas)
 * 🇦🇷 Mariano Zabaleta (replaced by Navarro Pastor)

Other entrants
The following pairs received wildcards into the main draw:
 * 🇧🇷 Gustavo Kuerten / 🇧🇷 André Sá
 * 🇧🇷 Ricardo Mello / 🇧🇷 Flávio Saretta

The following pairs received entry as alternates:
 * 🇮🇹 Francesco Aldi / 🇮🇹 Alessio di Mauro
 * 🇪🇸 Nicolás Almagro / 🇦🇷 Sergio Roitman

Singles
Nicolás Massú defeated 🇪🇸 Alberto Martín 6–3, 6–4
 * It was Massú's only title of the year and the 7th of his career.

Doubles
🇨🇿 Lukáš Dlouhý / 🇨🇿 Pavel Vízner defeated 🇵🇱 Mariusz Fyrstenberg / 🇵🇱 Marcin Matkowski 6–1, 4–6, [10–3]
 * It was Dlouhý's 1st title of the year and the 1st of his career. It was Vízner's 1st title of the year and the 10th of his career.