Singles
2011 Open de Rennes
Final
Champion	Julien Benneteau
Runner-up	Olivier Rochus
Score	6–4, 6–3
Events
Singles Doubles
← 2010 · Open de Rennes · 2012 →

Marc Gicquel was the defending champion but decided not to participate.
Julien Benneteau won the title, defeating Olivier Rochus in the final.

	Semifinals							Final
		Édouard Roger-Vasselin	2	2
	4	Olivier Rochus	6	6
								4	Olivier Rochus	4	3
								3	Julien Benneteau	6	6
	3	Julien Benneteau	6	6
		Roberto Bautista-Agut	3	4

	First round							Second round							Quarterfinals							Semifinals
	1/WC	G Müller	7	63	6
		S Bubka	5	77	4			1/WC	G Müller	6	6
	WC	G Burquier	4	2					R Berankis	4	2
		R Berankis	6	6											1/WC	G Müller	5	2
		É Roger-Vasselin	6	6												É Roger-Vasselin	7	6
		F Delbonis	2	2					É Roger-Vasselin	3	6	6
		A Gensse	4	3				6	S Darcis	6	1	3
	6	S Darcis	6	6																			É Roger-Vasselin	2	2
	4	O Rochus	6	2	6																	4	O Rochus	6	6
	WC	J Dasnières de Veigy	2	6	2			4	O Rochus	6	6
	Q	I Bozoljac	6	6				Q	I Bozoljac	3	4
		J Zopp	1	3											4	O Rochus	6	6
	Q	I Minář	712	5	62											R Bemelmans	2	3
		R Bemelmans	610	7	77				R Bemelmans	710	6
		J Hájek	6	3	6				J Hájek	68	1
	7	A Falla	3	6	1

	First round							Second round							Quarterfinals							Semifinals
	8	C-M Stebe	2	3
	Q	D Evans	6	6				Q	D Evans	6	4	3
		D Brown	5	2					M Jaziri	1	6	6
		M Jaziri	7	6												M Jaziri	7	5	0r
		M Teixeira	1	4											3	J Benneteau	5	7	3
		L Lacko	6	6					L Lacko	5	6	65
		A Brugués-Davi	3	0				3	J Benneteau	7	3	77
	3	J Benneteau	6	6																		3	J Benneteau	6	6
	5	N Mahut	77	6																			R Bautista-Agut	3	4
		D Guez	61	4				5	N Mahut	6	6
	WC	A Clément	6	6				WC	A Clément	3	3
	Q	N Mektić	4	3											5	N Mahut	4	5
		R Bautista-Agut	4	6	79											R Bautista-Agut	6	7
		A Beck	6	3	67				R Bautista-Agut	4	7	6
		K de Schepper	62	6	65			2	A Mannarino	6	5	3
	2	A Mannarino	77	4	77

• Main Draw
• Qualifying Draw