Singles
1991 Athens Open
Champion	Sergi Bruguera
Runner-up	Jordi Arrese
Score	7–5, 6–3
Draw	32
Seeds	8

Mark Koevermans was the defending champion, but lost in the quarterfinals this year.

Sergi Bruguera won the tournament, beating Jordi Arrese in the final, 7–5, 6–3.

Seeds

Draw

Finals

	Semifinals							Final
	1	Sergi Bruguera	1	6	6
	4	Thomas Muster	6	2	0
								1	Sergi Bruguera	7	6
								8	Jordi Arrese	5	3
	5	Francisco Clavet	5	2
	8	Jordi Arrese	7	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	S Bruguera	6	7
		P Kühnen	2	5				1	S Bruguera	6	6
	Q	M Velev	4	3				Q	W Kowalski	2	1
	Q	W Kowalski	6	6											1	S Bruguera	6	6
		M Vajda	3	2												R Furlan	2	2
		J Wöhrmann	6	6					J Wöhrmann	5	0
		R Furlan	6	3	6				R Furlan	7	6
	7	M Jaite	1	6	3																	1	S Bruguera	1	6	6
	4	T Muster	6	6																		4	T Muster	6	2	0
		J Eltingh	4	3				4	T Muster	6	6
		F Yunis	6	3	77				F Yunis	4	3
		JC Báguena	2	6	65										4	T Muster	6	3	77
	WC	G Kalovelonis	4	6	3										6	G Pérez Roldán	3	6	63
		B Wuyts	6	3	6				B Wuyts	1	2
	WC	A Bavelas	3	1				6	G Pérez Roldán	6	6
	6	G Pérez Roldán	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	F Clavet	77	6
		E Masso	65	3				5	F Clavet	4	6	6
		R Azar	6	6					R Azar	6	4	0
	Q	A Gaudenzi	3	0											5	F Clavet	77	6
		L Jonsson	6	0	6											L Jonsson	65	1
		M Filippini	2	6	3				L Jonsson	6	3	6
		B Karbacher	4	63				3	J Sánchez	4	6	4
	3	J Sánchez	6	77																		5	F Clavet	5	2
	8	J Arrese	78	6																		8	J Arrese	7	6
	Q	T Theine	66	1				8	J Arrese	6	6
		C Pistolesi	2	6	1				G Markus	2	4
		G Markus	6	3	6										8	J Arrese	2	6	6
		TJ Middleton	1	2												M Koevermans	6	3	4
		M Koevermans	6	6					M Koevermans	6	6
		M Zoecke	77	3	6				M Zoecke	0	2
	2	G Prpić	64	6	4

External links

• Main draw