Doubles
1991 Estoril Open
Champions	Paul Haarhuis Mark Koevermans
Runners-up	Tom Nijssen Cyril Suk
Score	6–3, 6–3

Sergio Casal and Emilio Sánchez were the defending champions, but lost in the semifinals this year.

Paul Haarhuis and Mark Koevermans won in the final 6–3, 6–3, against Tom Nijssen and Cyril Suk.

Seeds

Draw

Draw

	First round							Quarterfinals							Semifinals							Final
	1	S Casal E Sánchez	6	6
		A Gómez C Motta	3	4				1	S Casal E Sánchez	7	6
	Q	R Furlan C Mezzadri	3	6	3				P Henricsson O Rahnasto	6	0
		P Henricsson O Rahnasto	6	4	6										1	S Casal E Sánchez	4	3
	3	P Haarhuis M Koevermans	6	7											3	P Haarhuis M Koevermans	6	6
		V Flégl G Prpić	3	5				3	P Haarhuis M Koevermans	7	6
		R Båthman R Bergh	5	6	7				R Båthman R Bergh	6	2
		H de la Peña M Schapers	7	1	6																	3	P Haarhuis M Koevermans	6	6
		T Nijssen C Suk	6	7																			T Nijssen C Suk	3	3
		E Bengoechea F Clavet	2	6					T Nijssen C Suk	6	6
		J Čihák L Pimek	4	6	4			4	T Nováček T Šmíd	3	4
	4	T Nováček T Šmíd	6	2	6											T Nijssen C Suk	6	6
		C Beckman S Cannon	7	7												S Bruguera T Carbonell	2	1
	WC	J Cunha e Silva N Marques	5	5					C Beckman S Cannon	1	1
		S Bruguera T Carbonell	5	6	7				S Bruguera T Carbonell	6	6
	2	O Camporese J Sánchez	7	3	6

External links

• Main draw