Doubles
2021 Banja Luka Challenger
Champions	Antonio Šančić Nino Serdarušić
Runners-up	Ivan Sabanov Matej Sabanov
Score	6–3, 6–3

Sadio Doumbia and Fabien Reboul were the defending champions^[1] but chose not to defend their title.

Antonio Šančić and Nino Serdarušić won the title after defeating Ivan and Matej Sabanov 6–3, 6–3 in the final.

Seeds

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

	First round							Quarterfinals							Semifinals							Final
	1	I Sabanov M Sabanov	6	6
	WC	Vladan Tadić M Topo	2	2				1	I Sabanov M Sabanov	6	6
		V Kirkov D Kuzmanov	77	4	[8]				A Jecan DA Tomescu	3	3
		A Jecan Dan Alexandru Tomescu	61	6	[10]										1	I Sabanov M Sabanov	2	6	[10]
	3	Z Kolář V Sachko	w/o												3	Z Kolář V Sachko	6	3	[6]
		C Gómez-Herrera P Krstin						3	Z Kolář V Sachko	6	2	[11]
		M Bortolotti M Cuevas	6	6					M Bortolotti M Cuevas	3	6	[9]
		M Eriksson DN Mădăraș	1	2																		1	I Sabanov M Sabanov	3	3
		A Cozbinov M Echargui	7	6																			A Šančić N Serdarušić	6	6
		N Milojević A Šetkić	5	1					A Cozbinov M Echargui	64	5
		Davide Pozzi Alexander Weis	4	63				4	J Cerretani F Fallert	77	7
	4	J Cerretani F Fallert	6	77											4	J Cerretani F Fallert	65	3
		V Kopřiva David Poljak	77	6												A Šančić N Serdarušić	77	6
	WC	Danijal Muminović Dražen Petrović	65	3					V Kopřiva D Poljak	1	77	[10]
		A Šančić N Serdarušić	w/o						A Šančić N Serdarušić	6	64	[12]
	2	M Guinard L Margaroli

References

External links

• Main draw