Singles
2023 Open Saint-Brieuc
Final
Champion	Ričardas Berankis
Runner-up	Dan Added
Score	6–3, 6–7(3–7), 7–6(7–5)
Events
Singles Doubles
← 2022 · Open Saint-Brieuc · 2024 →

Jack Draper was the defending champion^[1] but chose not to defend his title.

Ričardas Berankis won the title after defeating Dan Added 6–3, 6–7^(3–7), 7–6^(7–5) in the final.

	Semifinals							Final
	8	Ričardas Berankis	6	7
	3	Evan Furness	3	5
								8	Ričardas Berankis	6	63	77
									Dan Added	3	77	65
	WC	Pierre-Hugues Herbert	6	2	3
		Dan Added	4	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	A Escoffier	6	6
	Alt	C Chidekh	2	4				1	A Escoffier	6	4	77
		C Broom	65	6	3				M Janvier	4	6	63
		M Janvier	77	1	6										1	A Escoffier	6	3	2
		K Żuk	66	6	77										8	R Berankis	2	6	6
	Q	M Bourgue	78	3	65				K Żuk	66	6	3
		C İlkel	2	0				8	R Berankis	78	2	6
	8	R Berankis	6	6																		8	R Berankis	6	7
	3	E Furness	7	6																		3	E Furness	3	5
	Q	Jurgen Briand	5	4				3	E Furness	2	6	6
		S Fanselow	6	6					S Fanselow	6	1	4
		A Hoang	4	3											3	E Furness	6	6
		J Forejtek	2	3											7	H Mayot	1	4
	WC	S Gueymard Wayenburg	6	6				WC	S Gueymard Wayenburg	3	2
	Q	Alexandre Reco	3	3				7	H Mayot	6	6
	7	H Mayot	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	R Collignon	7	3	3
	WC	P-H Herbert	5	6	6			WC	P-H Herbert	77	78
	Q	Constantin Bittoun Kouzmine	5	6	4				A Kachmazov	65	66
		A Kachmazov	7	1	6										WC	P-H Herbert	7	6
	Alt	G Oradini	1	62											Q	L Poullain	5	3
	Q	Lucas Poullain	6	77				Q	L Poullain	6	77
		Mathys Erhard	5	3				4	F Ferreira Silva	2	64
	4	F Ferreira Silva	7	6																		WC	P-H Herbert	6	2	3
	5	G Onclin	6	6																			D Added	4	6	6
		S Mochizuki	2	4				5	G Onclin	65	5
		V Sachko	3	3				Q	M Lajal	77	7
	Q	M Lajal	6	6											Q	M Lajal	5	3
	Alt	C Hemery	6	4	6											D Added	7	6
	WC	Antoine Ghibaudo	2	6	2			Alt	C Hemery	6	67	4
		D Added	6	6					D Added	4	79	6
	2	L Tu	4	4

• Main draw
• Qualifying draw