Singles
2023 Generali Open Kitzbühel
Final
Champion	Sebastián Báez
Runner-up	Dominic Thiem
Score	6–3, 6–1
Details
Draw	28
Seeds	8
Events
Singles Doubles
← 2022 · Generali Open Kitzbühel · 2024 →

Sebastián Báez defeated Dominic Thiem in the final, 6–3, 6–1 to win the singles tennis title at the 2023 Austrian Open Kitzbühel. It was his third ATP Tour singles title.^[1] It was Thiem's first appearance in an ATP Tour final since the 2020 ATP Finals, and his last before retiring from professional tennis the following year. Thiem was also the second consecutive Austrian wildcard to reach the final, after Filip Misolic the previous year.

Roberto Bautista Agut was the reigning champion,^[2] but withdrew before the tournament began.

The top four seeds received a bye into the second round.

	Semifinals							Final
	1	Tomás Martín Etcheverry	65	6	4
		Sebastián Báez	77	3	6
									Sebastián Báez	6	6
								WC	Dominic Thiem	3	1
	5	Laslo Djere	77	5	68
	WC	Dominic Thiem	63	7	710

	First round							Second round							Quarterfinals							Semifinals
								1	TM Etcheverry	6	6
	Q	G Andreozzi	5	6	6			Q	G Andreozzi	2	2
	WC	F Misolic	7	4	2										1	TM Etcheverry	66	6	6
		M Cecchinato	2	2												DE Galán	78	3	4
		DE Galán	6	6					DE Galán	3	6	710
		M-A Hüsler	77	2	4			8	D Altmaier	6	2	68
	8	D Altmaier	65	6	6																	1	TM Etcheverry	65	6	4
																							S Báez	77	3	6
								4	S Ofner	6	5	65
		L Van Assche	4	3					A Molčan	4	7	77
		A Molčan	6	6												A Molčan	4	3
	Q	H Medjedovic	4	2												S Báez	6	6
		S Báez	6	6					S Báez	6	6
	PR	G Pella	2	4				6	R Carballés Baena	1	2
	6	R Carballés Baena	6	6

	First round							Second round							Quarterfinals							Semifinals
	5	L Djere	6	77
		C O'Connell	4	64				5	L Djere	77	6
	WC	T Seyboth Wild	6	6				WC	T Seyboth Wild	65	3
	Q	D Novak	3	4											5	L Djere	6	6
		A Ramos Viñolas	6	7											3	P Cachin	4	2
		JP Varillas	1	5					A Ramos Viñolas	5	3
								3	P Cachin	7	6
																						5	L Djere	77	5	68
	7	D Lajović	3	2																		WC	D Thiem	63	7	710
		Z Zhang	6	6					Z Zhang	6	3	2
	Q	F Bagnis	63	66				WC	D Thiem	1	6	6
	WC	D Thiem	77	78											WC	D Thiem	4	6	6
	LL	JM Cerúndolo	77	4	2											A Rinderknech	6	3	4
		A Rinderknech	63	6	6				A Rinderknech	77	6
								2	Y Hanfmann	63	3

1. Juan Manuel Cerúndolo

	First round							Qualifying competition
	1	Federico Coria	1	2
		Lukas Neumayer	6	6
									Lukas Neumayer	3	1
								5	Hamad Medjedovic	6	6
	Alt	Lucas Miedler	4	64
	5	Hamad Medjedovic	6	77

	First round							Qualifying competition
	2	Juan Manuel Cerúndolo	6	6
		Francesco Maestrelli	3	2
								2	Juan Manuel Cerúndolo	2	4
									Guido Andreozzi	6	6
		Guido Andreozzi	77	6
	8	Jesper de Jong	64	2

	First round							Qualifying competition
	3	Thiago Monteiro	7	6
	Alt	Lukáš Rosol	5	0
								3	Thiago Monteiro	4	3
								7	Dennis Novak	6	6
	WC	Joel Schwärzler	4	1
	7	Dennis Novak	6	6

	First round							Qualifying competition
	4	Facundo Bagnis	66	6	6
		Maximilian Neuchrist	78	2	1
								4	Facundo Bagnis	4	6	6
								6	Ivan Gakhov	6	3	4
	WC	Kilian Feldbausch	4	60
	6	Ivan Gakhov	6	77

• Main draw
• Qualifying draw