Singles
2021 Antalya Challenger
Final
Champion	Jaume Munar
Runner-up	Lorenzo Musetti
Score	6–7(7–9), 6–2, 6–2
Events
Singles Doubles
Antalya Challenger · 2021 →

This was the first edition of the tournament and first of two editions of the tournament to start the 2021 ATP Challenger Tour year.^[1]

Jaume Munar won the title after defeating Lorenzo Musetti 6–7^(7–9), 6–2, 6–2 in the final.

	Semifinals							Final
	1	Jaume Munar	6	6
		Tommy Robredo	0	1
								1	Jaume Munar	67	6	6
								5	Lorenzo Musetti	79	2	2
	WC	Cem İlkel	78	1	1
	5	Lorenzo Musetti	66	6	6

	First round							Second round							Quarterfinals							Semifinals
	1	J Munar	6	6
		C Taberner	3	4				1	J Munar	6	6
		Z Kolář	6	3	7				Z Kolář	2	4
		L Giustino	3	6	5										1	J Munar	3	6	6
		JP Varillas	4	3												A Giannessi	6	2	0
	Q	R Cid Subervi	6	6				Q	R Cid Subervi	3	2
		A Giannessi	6	7					A Giannessi	6	6
	7	J Kovalík	4	5																		1	J Munar	6	6
	4	F Bagnis	3	64																			T Robredo	0	1
	Q	B Kavčič	6	77				Q	B Kavčič	6	3	1
		R Molleker	3	4					T Robredo	4	6	6
		T Robredo	6	6												T Robredo	6	6
	Q	D Ajduković	6	6											Q	D Ajduković	1	4
	WC	M İlhan	3	3				Q	D Ajduković	3	6	79
		P Lorenzi	6	6					P Lorenzi	6	4	67
	6	D Altmaier	4	2

	First round							Second round							Quarterfinals							Semifinals
	8	L Mayer	6	6
		T Griekspoor	2	2				8	L Mayer	5	1
		J Menezes	3	4				WC	C İlkel	7	6
	WC	C İlkel	6	6											WC	C İlkel	65	6	77
		M Safwat	6	5	67										LL	TM Etcheverry	77	4	64
		J Domingues	4	7	79				J Domingues	1	2
	LL	TM Etcheverry	77	6				LL	TM Etcheverry	6	6
	3	T Seyboth Wild	65	4																		WC	C İlkel	78	1	1
	5	L Musetti	6	6																		5	L Musetti	66	6	6
		A Tabilo	2	0				5	L Musetti	6	6
		E Escobedo	66	3					R Ramanathan	0	4
		R Ramanathan	78	6											5	L Musetti	5	6	6
		E Gómez	6	6											Q	A Santillan	7	3	4
	WC	E Kırkın	4	1					E Gómez	0	1
	Q	A Santillan	6	2	7			Q	A Santillan	6	6
	2	DE Galán	2	6	5

• Main draw
• Qualifying draw