Singles
1991 Dutch Open
Final
Champion	Magnus Gustafsson
Runner-up	Jordi Arrese
Score	5–7, 7–6(7–2), 2–6, 6–1, 6–0
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 1990 · Dutch Open · 1992 →

Francisco Clavet was the defending champion of the singles event at the Dutch Open men's tennis tournament, but he lost to Magnus Gustafsson.

Gustafsson won in the final 5–7, 7–6^(7–2), 2–6, 6–1, 6–0 against Jordi Arrese.^[1]

Champion seeds are indicated in bold while text in italics indicates the round in which that seed was eliminated.

	Semifinals							Final
		Mark Koevermans	3	6	4
		Jordi Arrese	6	3	6
									Jordi Arrese	7	62	6	1	0
								4	Magnus Gustafsson	5	77	2	6	6
	4	Magnus Gustafsson	7	6
	2	Karel Nováček	6	3

	First round							Second round							Quarterfinals							Semifinals
	1	S Bruguera	6	6
	Q	D Pérez	4	4				1	S Bruguera	5	4
		M Koevermans	7	6					M Koevermans	7	6
		P Haarhuis	4	2												M Koevermans	6	6
	Q	R Furlan	3	6	6											R Furlan	1	1
		M Filippini	6	2	1			Q	R Furlan	1	7	6
	8	O Camporese	6	6				8	O Camporese	6	6	2
		M Jaite	1	3																			M Koevermans	3	6	4
	6	H Skoff	6	6																			J Arrese	6	3	6
	WC	J Eltingh	4	3				6	H Skoff	6	6	2
		J Arrese	6	6					J Arrese	3	7	6
	Q	O Delaître	0	2												J Arrese	6	6
		T Carbonell	6	6											WC	T Muster	4	1
		R Agénor	1	3					T Carbonell	7	1	1
	WC	T Muster	6	6				WC	T Muster	6	6	6
	3	A Cherkasov	3	3

	First round							Second round							Quarterfinals							Semifinals
	4	M Gustafsson	7	7
	Q	F Clavet	6	6				4	M Gustafsson	7	7
		L Jonsson	3	6	6				L Jonsson	5	5
		H de la Peña	6	4	0										4	M Gustafsson	6	6	6
		M Rosset	6	6												M Rosset	7	2	4
		R Krajicek	4	4					M Rosset	7	3	6
	5	G Prpić	6	7				5	G Prpić	6	6	4
	Q	K Braasch	3	6																		4	M Gustafsson	7	6
	7	G Pérez Roldán	4	6	6																	2	K Nováček	6	3
	WC	T Champion	6	3	7			WC	T Champion	6	4	4
		F Davín	6	6					F Davín	3	6	6
		J Siemerink	4	3												F Davín	6	6	2
		C Pioline	6	6											2	K Nováček	7	2	6
	Q	F Roig	4	2					C Pioline	4	4
		A Mancini	7	3	1			2	K Nováček	6	6
	2	K Nováček	5	6	6

• ATP main draw