1991 Swedish Open – Singles

Richard Fromberg was the defending champion, but did not compete this year.

Magnus Gustafsson won the title by defeating Alberto Mancini 6–1, 6–2 in the final.^[1][2]

	Semifinals							Final
	8	Alberto Mancini	0	6	6
	3	Alexander Volkov	6	3	2
								8	Alberto Mancini	1	2
								2	Magnus Gustafsson	6	6
		Christian Bergström	6	3	2
	2	Magnus Gustafsson	4	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	A Cherkasov	3	2
		M Larsson	6	6					M Larsson	6	6
	Q	M Górriz	3	6	3			Q	L-A Wahlgren	0	3
	Q	L-A Wahlgren	6	3	6											M Larsson	6	3	4
		C Pistolesi	6	6											8	A Mancini	4	6	6
		T Champion	4	0					C Pistolesi	6	3	2
	Q	J Björkman	3	1				8	A Mancini	3	6	6
	8	A Mancini	6	6																		8	A Mancini	0	6	6
	3	A Volkov	6	6																		3	A Volkov	6	3	2
		V Paloheimo	4	4				3	A Volkov	6	4	6
		M Pernfors	6	6					M Pernfors	4	6	4
		J Aguilera	3	3											3	A Volkov	6	6
		L Jonsson	6	6												L Jonsson	2	1
		T Carbonell	3	4					L Jonsson	6	6
		B Wuyts	0r					5	M Filippini	1	2
	5	M Filippini	2

	First round							Second round							Quarterfinals							Semifinals
	6	N Kulti	4	6	6
	Q	J Anderson	6	2	3			6	N Kulti	2	1
		C Bergström	6	6					C Bergström	6	6
		A Rahunen	1	2												C Bergström	3	6	6
	WC	T Enqvist	4	1												J Gunnarsson	6	2	2
		J Gunnarsson	6	6					J Gunnarsson	7	7
		E Masso	6	6					E Masso	5	6
	4	A Järryd	3	1																			C Bergström	6	3	2
	7	M Koevermans	6	1	5																	2	M Gustafsson	4	6	6
		P Arraya	3	6	7				P Arraya	7	4	6
	WC	D Engel	1	7	6			WC	D Engel	6	6	4
		C Pioline	6	5	4											P Arraya	1	2
	WC	N Kroon	7	4	6										2	M Gustafsson	6	6
		P Kühnen	5	6	4			WC	N Kroon	4	7	1
		N Marques	0	5				2	M Gustafsson	6	6	6
	2	M Gustafsson	6	7

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