Singles
2018 Internationaux de Tennis de Blois
Final
Champion	Scott Griekspoor
Runner-up	Félix Auger-Aliassime
Score	6–4, 6–4
Events
Singles Doubles
← 2017 · Internationaux de Tennis de Blois · 2019 →

Damir Džumhur was the defending champion but chose not to defend his title.

Scott Griekspoor won the title after defeating Félix Auger-Aliassime 6–4, 6–4 in the final.

	Semifinals							Final
	5	Félix Auger-Aliassime	77	3	6
		Thiemo de Bakker	62	6	1
								5	Félix Auger-Aliassime	4	4
									Scott Griekspoor	6	6
		Scott Griekspoor	6	2	6
	7/WC	Stéphane Robert	1	6	2

	First round							Second round							Quarterfinals							Semifinals
	1	P Sousa	3	4
	Q	T Lamasine	6	6				Q	T Lamasine	6	1	6
	Q	M Ymer	2	3					K de Schepper	4	6	1
		K de Schepper	6	6											Q	T Lamasine	4	2
		D Gimeno Traver	6	3	3										5	F Auger-Aliassime	6	6
	Q	MT Barrios Vera	2	6	6			Q	MT Barrios Vera	3	4
		A Basso	3	2				5	F Auger-Aliassime	6	6
	5	F Auger-Aliassime	6	6																		5	F Auger-Aliassime	77	3	6
	3	H Laaksonen	7	2																			T de Bakker	62	6	1
		E Benchetrit	5	1r				3	H Laaksonen	63	4
		T de Bakker	6	6					T de Bakker	77	6
		João Monteiro	2	2												T de Bakker	6	6
		B Bonzi	2	3											8	C Garín	4	4
		M Janvier	6	6					M Janvier	2	2
	WC	Jaimee Floyd Angele	3	5				8	C Garín	6	6
	8	C Garín	6	7

	First round							Second round							Quarterfinals							Semifinals
	6	C Berlocq	3	6	77
	Q	Jules Okala	6	1	65			6	C Berlocq	6	65	4
		S Griekspoor	6	6					S Griekspoor	3	77	6
		L Giustino	4	1												S Griekspoor	6	5	7
		M Bourgue	4	6	4										4	JI Londero	2	7	5
		C Lestienne	6	2	1r				M Bourgue	5	63
		J Domingues	3	4				4	JI Londero	7	77
	4	JI Londero	6	6																			S Griekspoor	6	2	6
	7/WC	S Robert	6	77																		7/WC	S Robert	1	6	2
		M Vilella Martínez	4	64				7/WC	S Robert	64	6	6
	SE	R Marcora	6	6				SE	R Marcora	77	3	3
	WC	A Müller	1	3											7/WC	S Robert	6	6
	SE	J Tatlot	2r													P Cachin	3	0
		P Cachin	5						P Cachin	69	78	6
		F Ferreira Silva	6	5	66			LL	H Heliövaara	711	66	2
	LL	H Heliövaara	3	7	78

• Main Draw
• Qualifying Draw