The 1994 Topper Open was a men's tennis tournament held in Montevideo, Uruguay and played on outdoor clay courts.

The tournament was part of the World Series circuit of the 1994 ATP Tour.

It was the inaugural edition of the tournament and was held from 31 October through 6 November 1994.

First-seeded Alberto Berasategui won the singles title.

[3][4] Alberto Berasategui defeated Francisco Clavet 6–4, 6–0 Marcelo Filippini / Luiz Mattar defeated Sergio Casal / Emilio Sánchez, 7–6, 6–4