Singles
2021 Maia Challenger II
Final
Champion	Tseng Chun-hsin
Runner-up	Nuno Borges
Score	5–7, 7–5, 6–2
Events
Singles Doubles
← 2021 · Maia Challenger · 2022 →

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

Tseng Chun-hsin won the title after defeating Nuno Borges 5–7, 7–5, 6–2 in the final.

	Semifinals							Final
	1	Andrej Martin	1	2
	7	Tseng Chun-hsin	6	6
								7	Tseng Chun-hsin	5	7	6
								5	Nuno Borges	7	5	2
	5	Nuno Borges	6	6
	Alt	Elliot Benchetrit	2	2

	First round							Second round							Quarterfinals							Semifinals
	1	A Martin	77	65	7
	Q	D Wenger	61	77	5			1	A Martin	w/o
		L Wessels	4	6	65			Q	L Potenza
	Q	Luca Potenza	6	2	77										1	A Martin	6	6
		S Fanselow	6	3	6											S Fanselow	2	2
	WC	Fábio Coelho	3	6	3				S Fanselow	77	6
		G Melzer	6	4	63			8	G Oliveira	63	4
	8	G Oliveira	4	6	77																	1	A Martin	1	2
	3	M Janvier	65	2																		7	C-h Tseng	6	6
		FC Jianu	77	6					FC Jianu	7	3	4
		Eduard Esteve Lobato	6	6					E Esteve Lobato	5	6	6
	SE	O Prihodko	3	2												E Esteve Lobato	1	5
		A Erler	1	2											7	C-h Tseng	6	7
		F Marozsán	6	6					F Marozsán	64	3
		M Viola	3	4				7	C-h Tseng	77	6
	7	C-h Tseng	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	N Borges	710	6
		R Bonadio	68	2				5	N Borges	6	6
	Q	Edoardo Lavagno	6	2	78			Q	E Lavagno	3	2
	WC	T Cação	1	6	66										5	N Borges	6	6
		J Barranco Cosano	4	6	4											N Sánchez Izquierdo	4	4
		N Sánchez Izquierdo	6	4	6				N Sánchez Izquierdo	6	65	6
	Alt	O Krutykh	6	2	5			4	G Elias	1	77	3
	4	G Elias	4	6	7																	5	N Borges	6	6
	6	J Domingues	3	7	3																	Alt	E Benchetrit	2	2
		N Hardt	6	5	6				N Hardt	3	4
		Alexis Gautier	2	2				Alt	E Benchetrit	6	6
	Alt	E Benchetrit	6	6											Alt	E Benchetrit	5	6	6
	Q	Elmar Ejupovic	6	6											Q	E Ejupovic	7	1	4
	Alt	O Roca Batalla	4	4				Q	E Ejupovic	6	6
	WC	Pedro Araújo	4	6	3			2	K Coppejans	4	4
	2	K Coppejans	6	4	6

• Main draw
• Qualifying draw