Singles
2017 Open de Rennes
Champion	Uladzimir Ignatik
Runner-up	Andrey Rublev
Score	6–7(6–8), 6–3, 7–6(7–5)

Malek Jaziri was the defending champion but chose not to defend his title.

Uladzimir Ignatik won the title after defeating Andrey Rublev 6–7^(6–8), 6–3, 7–6^(7–5) in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Andrey Rublev	77	7
	PR	Blaž Kavčič	65	5
									Andrey Rublev	78	3	65
								LL	Uladzimir Ignatik	66	6	77
		Mathias Bourgue	4	4
	LL	Uladzimir Ignatik	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J Chardy	4	612
		A Rublev	6	714					A Rublev	6	79
		G Žemlja	6	78					G Žemlja	4	67
	WC	E Furness	4	66												A Rublev	6	3	6
		D Brands	5	4												D-h Lee	4	6	4
		D-h Lee	7	6					D-h Lee	6	4	6
	Q	E Corrie	6	2	3			6	L Rosol	3	6	2
	6	L Rosol	4	6	6																		A Rublev	77	7
	4	S Stakhovsky	6	5	6																	PR	B Kavčič	65	5
	Q	R Boutillier	3	7	2			4	S Stakhovsky	4	77	64
	PR	B Kavčič	4	6	6			PR	B Kavčič	6	62	77
	Q	J Zopp	6	1	4										PR	B Kavčič	77	3	7
	WC	G Blancaneaux	5	3												V Millot	65	6	5
		V Millot	7	6					V Millot	77	4	6
		S Napolitano	6	3	4			5	G Andreozzi	64	6	2
	5	G Andreozzi	2	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	E Donskoy	1r
		K de Schepper	4						K de Schepper	4	3
	WC	T Lamasine	65	710	0				T Gabashvili	6	6
		T Gabashvili	77	68	6											T Gabashvili	1	65
		M Bourgue	6	64	7											M Bourgue	6	77
		R Bemelmans	4	77	5				M Bourgue	77	6
	WC	M Janvier	3	5				3	J Kovalík	65	4
	3	J Kovalík	6	7																			M Bourgue	4	4
	8	T Kamke	77	4	6																	LL	U Ignatik	6	6
		M Fucsovics	63	6	4			8	T Kamke	4	65
	LL	U Ignatik	6	77				LL	U Ignatik	6	77
		S Diez	2	65											LL	U Ignatik	6	6
		A De Greef	5	6	6										2	P-H Mathieu	4	4
		N Gombos	7	3	3				A De Greef	77	4	5
	Q	S Tsitsipas	3	6	3			2	P-H Mathieu	61	6	7
	2	P-H Mathieu	6	3	6

References

• Main Draw
• Qualifying Draw