Singles
2023 Challenger AAT
Final
Champion	Thiago Seyboth Wild
Runner-up	Luciano Darderi
Score	6–3, 6–3
Events
Singles Doubles
← 2022 · Challenger AAT · 2024 →

Francisco Comesaña was the defending champion^[1] but lost in the second round to Andrea Collarini.

Thiago Seyboth Wild won the title after defeating Luciano Darderi 6–3, 6–3 in the final.

	Semifinals							Final
	1	Andrea Collarini	6	65	2
	3	Luciano Darderi	4	77	6
								3	Luciano Darderi	3	3
								8	Thiago Seyboth Wild	6	6
	8	Thiago Seyboth Wild	6	6
	7	Mariano Navone	2	3

	First round							Second round							Quarterfinals							Semifinals
	1	A Collarini	6	6
		D Dutra da Silva	4	2				1	A Collarini	6	6
		M Pucinelli de Almeida	4	2					F Comesaña	3	4
		F Comesaña	6	6											1	A Collarini	6	6
	Alt	G Lama	66	62												G Villanueva	2	1
		G Villanueva	78	77					G Villanueva	7	1	7
	WC	Lautaro Midón	4	4				6	N Hardt	5	6	5
	6	N Hardt	6	6																		1	A Collarini	6	65	2
	3	L Darderi	6	6																		3	L Darderi	4	77	6
		M Janvier	3	4				3	L Darderi	6	6
	Alt	Juan Bautista Otegui	4	2				Q	C Huertas del Pino	2	0
	Q	C Huertas del Pino	6	6											3	L Darderi	6	6
		S Rodríguez Taverna	6	6												S Rodríguez Taverna	3	2
	WC	Alex Barrena	0	4					S Rodríguez Taverna	6	6
	Q	V Aboian	3	6	3			Q	V Aboian	3	4
	LL	J Pereira	6	1	0r

	First round							Second round							Quarterfinals							Semifinals
	8	T Seyboth Wild	6	4	6
		B Hassan	2	6	3			8	T Seyboth Wild	6	3	6
	LL	Wilson Leite	3	2					M Dellien	1	6	1
		M Dellien	6	6											8	T Seyboth Wild	6	6
	Alt	P Boscardin Dias	1	3												H Casanova	3	2
		H Casanova	6	6					H Casanova	6	61	6
		JL Reis da Silva	6	7					JL Reis da Silva	1	77	4
	4	JP Ficovich	2	5																		8	T Seyboth Wild	6	6
	7	M Navone	6	6																		7	M Navone	2	3
	WC	AL Lingua Lavallén	3	2				7	M Navone	7	0	7
		JB Torres	6	6					JB Torres	5	6	5
	Q	Matías Zukas	2	1											7	M Navone	6	77
	Q	Tomás Farjat	2	1												RA Burruchaga	3	62
		RA Burruchaga	6	6					RA Burruchaga	6	6
	Q	G Heide	6	6				Q	G Heide	1	2
	Q	Mariano Kestelboim	4	3

• Main draw
• Qualifying draw