1990 Athens Open
| 1990 Athens Open | |||
|---|---|---|---|
| Date | October 1 – October 8 | ||
| Edition | 5th | ||
| Category | World Series | ||
| Surface | Clay / Outdoor | ||
| Location | Athens, Greece | ||
| Champions | |||
| Singles | |||
 Mark Koevermans | |||
| Doubles | |||
 Sergio Casal / Javier Sánchez | |||
ATP Athens Open
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The 1990 ATP Athens Open was a tennis tournament played on outdoor clay courts in Athens in Greece that was part of the World Series of the 1990 ATP Tour. It was held from October 1 through October 8, 1990.
Champions
Men's Singles
Main article: 1990 Athens Open – Singles
Mark Koevermans defeated 
Franco Davín 5–7, 6–4, 6–1
- It was Koevermans' only title of the year and the 1st of his career.
Men's Doubles
Main article: 1990 Athens Open – Doubles
Sergio Casal / Javier Sánchez defeated Tom Kempers / Richard Krajicek 6–4, 6–3
- It was Casal's 7th title of the year and the 32nd of his career. It was Sánchez's 4th title of the year and the 10th of his career.
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