The 1999 Brasil Open was a women's tennis tournament played on outdoor clay courts in São Paulo, Brazil.

It was part of Tier IV of the 1999 WTA Tour.

The tournament was held from October 4 through October 10, 1999.

Fabiola Zuluaga won the singles title.

[1][2] The following players received wildcards into the singles main draw: The following players received wildcards into the doubles main draw: The following players received entry from the singles qualifying draw: The following players received entry from the doubles qualifying draw: Fabiola Zuluaga defeated Patricia Wartusch, 7–5, 4–6, 7–5 Laura Montalvo / Paola Suárez defeated Janette Husárová / Florencia Labat, 6–7(7–9), 7–5, 7–5