Singles
2021 Open Sopra Steria de Lyon
Champion	Pablo Cuevas
Runner-up	Elias Ymer
Score	6–2, 6–2

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

Pablo Cuevas won the title after defeating Elias Ymer 6–2, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Pablo Cuevas	6	6
	3	Facundo Bagnis	4	1
								1	Pablo Cuevas	6	6
									Elias Ymer	2	2
	5	Taro Daniel	4	2
		Elias Ymer	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	P Cuevas	4	77	6
	Q	P Cachin	6	65	2			1	P Cuevas	6	6
		J Domingues	3	6	4			WC	K Jacquet	4	1
	WC	K Jacquet	6	4	6										1	P Cuevas	6	7
		A Pellegrino	6	0	6											A Pellegrino	3	5
	Q	C Ugo Carabelli	4	6	4				A Pellegrino	78	3	6
		M Janvier	6	6					M Janvier	66	6	3
	7	F Cerúndolo	3	3																		1	P Cuevas	6	6
	3	F Bagnis	5	6	6																	3	F Bagnis	4	1
	Q	A Vatutin	7	3	2			3	F Bagnis	6	6
		M Trungelliti	62	2					T Lamasine	4	0
		T Lamasine	77	6											3	F Bagnis	6	77
	WC	M Martineau	4	2											8	C-M Stebe	3	65
		TM Etcheverry	6	6					TM Etcheverry	1	4
	Q	M Guinard	3	3				8	C-M Stebe	6	6
	8	C-M Stebe	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	T Daniel	6	6
		A Collarini	3	2				5	T Daniel	6	6
		B Fratangelo	6	6					B Fratangelo	3	4
	LL	M Geerts	3	3											5	T Daniel	77	62	6
		D Altmaier	6	6												D Altmaier	63	77	3
		A Müller	3	2					D Altmaier	6	3	78
	LL	L Lokoli	2r					4	DE Galán	4	6	66
	4	DE Galán	5																			5	T Daniel	4	2
	6	B Bonzi	6	65	4																		E Ymer	6	6
		O Otte	4	77	6				O Otte	4	4
		C Lestienne	4	0r					E Ymer	6	6
		E Ymer	6	0												E Ymer	6	5
	WC	T Droguet	63	6	4										SE	H Rune	3	3r
	SE	H Rune	77	1	6			SE	H Rune	6	6
		S Nagal	77	63	5			2	F Verdasco	4	3
	2	F Verdasco	65	77	7

References

External links

• Main draw
• Qualifying draw