Doubles
2019 Open de Rennes
Final
Champions	Sander Arends Tristan-Samuel Weissborn
Runners-up	David Pel Antonio Šančić
Score	6–4, 6–4
Events
Singles Doubles
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Sander Gillé and Joran Vliegen were the defending champions but chose not to defend their title.

Sander Arends and Tristan-Samuel Weissborn won the title after defeating David Pel and Antonio Šančić 6–4, 6–4 in the final.

	First round							Quarterfinals							Semifinals							Final
	1	C-p Hsieh C Rungkat	0	2
		J Melzer F Polášek	6	6					J Melzer F Polášek	7	6
		J Eysseric Q Halys	7	6					J Eysseric Q Halys	5	4
	WC	M Janvier D Kuzmanov	5	4												J Melzer F Polášek	6	3	[6]
	3	S Arends T-S Weissborn	7	77											3	S Arends T-S Weissborn	3	6	[10]
	WC	Antoine Cornut-Chauvinc B Paire	5	62				3	S Arends T-S Weissborn	6	77
	WC	E Furness M Guinard	64	3					R Junaid A Shamasdin	4	63
		R Junaid A Shamasdin	77	6																		3	S Arends T-S Weissborn	6	6
	ITF	G Jacq Hugo Voljacques	7	3	[10]																		D Pel A Šančić	4	4
		F Auger-Aliassime J Ocleppo	5	6	[7]			ITF	G Jacq H Voljacques	2	2
	ITF	J Barranco Cosano R Brancaccio	4	5				4	F Neis P Raja	6	6
	4	F Neis P Raja	6	7											4	F Neis P Raja	3	4
		L Margaroli D Vega Hernández	7	77												D Pel A Šančić	6	6
		C Moutet S Stakhovsky	5	64					L Margaroli D Vega Hernández	3	4
		D Pel A Šančić	77	77					D Pel A Šančić	6	6
	2	F Martin H Nys	65	65

• Main draw