Singles
2021 Poznań Open
Champion	Bernabé Zapata Miralles
Runner-up	Jiří Lehečka
Score	6–3, 6–2

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

Bernabé Zapata Miralles won the title after defeating Jiří Lehečka 6–3, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Bernabé Zapata Miralles	1	7	7
	7	Dmitry Popko	6	5	5
								1	Bernabé Zapata Miralles	6	6
									Jiří Lehečka	3	2
	Q	A Shevchenko	4	2
		Jiří Lehečka	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	B Zapata Miralles	6	6
		K Coppejans	1	1				1	B Zapata Miralles	4	7	6
		M Moraing	6	6					M Moraing	6	5	3
		T Kamke	4	2											1	B Zapata Miralles	6	710
		F Mena	6	0	6											A Müller	2	68
		J de Jong	3	6	4				F Mena	3	2
		A Müller	6	6					A Müller	6	6
	6	E Couacaud	3	2																		1	B Zapata Miralles	1	7	7
	LL	E Furness	2	5																		7	D Popko	6	5	5
	SE	N Kicker	6	7				SE	N Kicker	6	6
	WC	Aleksander Orlikowski	3	5					M Guinard	2	4
		M Guinard	6	7											SE	N Kicker	6	4	2
		M Janvier	3	2											7	D Popko	3	6	6
		R Marcora	6	6					R Marcora	0	3
		V Kopřiva	4	6	5			7	D Popko	6	6
	7	D Popko	6	4	7

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	5	Z Kolář	6	6
	Alt	J Forejtek	4	4				5	Z Kolář	6	4	7
	Alt	P Cachin	6	6				Alt	P Cachin	4	6	5
	Q	J Domingues	3	1											5	Z Kolář	4	1
	Q	Elmar Ejupovic	6	6											Q	A Shevchenko	6	6
	Q	David Poljak	2	4				Q	E Ejupovic	63	6	63
	WC	Leo Borg	5	2				Q	A Shevchenko	77	3	77
	Q	A Shevchenko	7	6																		Q	A Shevchenko	4	2
	8	G Andreozzi	1	4																			J Lehečka	6	6
		A Vukic	6	6					A Vukic	3	4
		J Lehečka	6	7					J Lehečka	6	6
		T Lamasine	3	5												J Lehečka	7	6
	LL	M Zekić	6	7											2	B van de Zandschulp	5	3
		G Elias	2	5				LL	M Zekić	4	1
	WC	D Michalski	2	3				2	B van de Zandschulp	6	6
	2	B van de Zandschulp	6	6

References

External links

• Main draw
• Qualifying draw