Doubles
2021 Poznań Open
Final
Champions	Zdeněk Kolář Jiří Lehečka
Runners-up	Karol Drzewiecki Aleksandar Vukic
Score	6–4, 3–6, [10–5]
Events
Singles Doubles
← 2019 · Poznań Open · 2022 →

Andrea Vavassori and David Vega Hernández were the defending champions^[1] but only Vega Hernández chose to defend his title, partnering Fernando Romboli. Vega Hernández lost in the semifinals to Zdeněk Kolář and Jiří Lehečka.

Kolář and Lehečka won the title after defeating Karol Drzewiecki and Aleksandar Vukic 6–4, 3–6, [10–5] in the final.

	First round							Quarterfinals							Semifinals							Final
	1	F Romboli D Vega Hernández	6	6
		D Popko A Vatutin	2	0				1	F Romboli D Vega Hernández	2	77	[10]
	WC	VV Cornea P Tsitsipas	6	6				WC	VV Cornea P Tsitsipas	6	60	[3]
	WC	L Borg Aleksander Orlikowski	2	4											1	F Romboli D Vega Hernández	77	4	[8]
	3	E King M Schnur	65	5												Z Kolář J Lehečka	64	6	[10]
		Z Kolář J Lehečka	77	7					Z Kolář J Lehečka	w/o
		P Cachin B Zapata Miralles	6	6					P Cachin B Zapata Miralles
		F Mena A Merino	1	1																			Z Kolář J Lehečka	6	3	[10]
		C Denolly M Guinard	62	1																			K Drzewiecki A Vukic	4	6	[5]
		E Couacaud M Janvier	77	6					E Couacaud M Janvier	6	3	[10]
		K Drzewiecki A Vukic	6	79					K Drzewiecki A Vukic	3	6	[12]
	4	G Andreozzi S Galdós	3	67												K Drzewiecki A Vukic	6	6
	WC	M Kaśnikowski D Michalski	3	4												R Gonzales H Johnson	4	4
		R Gonzales H Johnson	6	6					R Gonzales H Johnson	2	78	[13]
		J Domingues G Elias	2	2				2	S Walków J Zieliński	6	66	[11]
	2	S Walków J Zieliński	6	6

• Main draw