1990 Estoril Open – Men's doubles
# 1990 Estoril Open – Men's doubles

This was the first edition of the event.

Sergio Casal and Emilio Sánchez won in the final 7–5, 4–6, 7–5, against Omar Camporese and Paolo Canè.

## Seeds

* Sergio Casal / Emilio Sánchez (champions)
* Andrés Gómez / Javier Sánchez (quarterfinals)
* Tomás Carbonell / Karel Nováček (semifinals)
* Paul Haarhuis / Mark Koevermans (quarterfinals)

## Draw

### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Draw

| First round | First round | First round | First round | First round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| 1 | S Casal E Sánchez | 6 | 6 | | | | | | | | | | | | | | | |
| | J Arrese F Clavet | 3 | 2 | | 1 | S Casal E Sánchez | $7^7$ | 6 | | | | | | | | | | |
| | P Henricsson L Pimek | 3 | 4 | | | D Adams M Vajda | $6^5$ | 2 | | | | | | | | | | |
| | D Adams M Vajda | 6 | 6 | | | | | | | 1 | S Casal E Sánchez | 6 | 6 | | | | | |
| 3 | T Carbonell K Nováček | 6 | 6 | | | | | | | 3 | T Carbonell K Nováček | 3 | 4 | | | | | |
| WC | S Bruguera N Marques | 4 | 3 | | 3 | T Carbonell K Nováček | w/o | | | | | | | | | | | |
| | H Jan Davids M Ozer | 2 | 3 | | | M Gorriz K Lubbers | | | | | | | | | | | | |
| | M Gorriz K Lubbers | 6 | 6 | | | | | | | | | | | 1 | S Casal E Sánchez | 7 | 4 | 7 |
| | U Riglewski B Uribe | 6 | 3 | 4 | | | | | | | | | | | O Camporese P Canè | 5 | 6 | 5 |
| | O Camporese P Canè | 3 | 6 | 6 | | O Camporese P Canè | w/o | | | | | | | | | | | |
| | A Cherkasov F Mordegan | $7^7$ | 2 | 2 | 4 | P Haarhuis M Koevermans | | | | | | | | | | | | |
| 4 | P Haarhuis M Koevermans | $6^5$ | 6 | 6 | | | | | | | O Camporese P Canè | 6 | 6 | | | | | |
| Q | R Azar F Davín | 6 | 2 | $6^{10}$ | | | | | | | E Masso G Pérez Roldán | 4 | 1 | | | | | |
| | E Masso G Pérez Roldán | 3 | 6 | $7^{12}$ | | E Masso G Pérez Roldán | 4 | 6 | 6 | | | | | | | | | |
| | J Cunha Silva J-P Fleurian | 6 | $6^5$ | 5 | 2 | A Gómez J Sánchez | 6 | 1 | 4 | | | | | | | | | |
| 2 | A Gómez J Sánchez | 3 | $7^7$ | 7 | | | | | | | | | | | | | | |
