Doubles
1991 Campionati Internazionali di San Marino
Final
Champions	Jordi Arrese Carlos Costa
Runners-up	Christian Miniussi Diego Pérez
Score	6–3, 3–6, 6–3
Details
Draw	16 (1WC/1Q)
Seeds	4
Events
Singles Doubles
← 1990 · San Marino GO&FUN Open · 1992 →

Vojtěch Flégl and Daniel Vacek were the defending champions, but both players chose to compete at Kitzbühel during the same week.

Jordi Arrese and Carlos Costa won the title by defeating Christian Miniussi and Diego Pérez 6–3, 3–6, 6–3 in the final.^[1][2]

	First round							Quarterfinals							Semifinals							Final
	1	M Górriz A Mora	6	6	2
		S Doseděl M Oosting	4	7	6				S Doseděl M Oosting	6	1	6
		C Brandi R Furlan	6	7					C Brandi R Furlan	4	6	3
		J Cunha e Silva D Orsanic	1	5												S Doseděl M Oosting	6	6	4
	3	C Miniussi D Pérez	3	6	7										3	C Miniussi D Pérez	7	3	6
		M Ardinghi M Visconti	6	1	5			3	C Miniussi D Pérez	6	6
		JF Altur M Ingaramo	2	7	4				N Marques C Mezzadri	1	2
		N Marques C Mezzadri	6	5	6																	3	C Miniussi D Pérez	3	6	3
	WC	F Davín G Pérez Roldán	6	6																			J Arrese C Costa	6	3	6
		O Rahnasto J Sobel	4	2				WC	F Davín G Pérez Roldán	3	r
	Q	E Rossi M Valeri	2	1				4	M Boscatto M Cierro	6
	4	M Boscatto M Cierro	6	6											4	M Boscatto M Cierro	6	1
		J Arrese C Costa	6	6	6											J Arrese C Costa	7	6
		J Čihák T Anzari	4	7	2				J Arrese C Costa	6	0	7
		J Donar N Kulti	7	3	4			2	O Jonsson MI Năstase	4	6	6
	2	O Jonsson MI Năstase	5	6	6

• Official results archive (ATP)
• Official results archive (ITF)