Singles
2023 Sardegna Open
Final
Champion	Ugo Humbert
Runner-up	Laslo Djere
Score	4–6, 7–5, 6–4
Events
Singles Doubles
← 2021 · Sardegna Open · 2024 →

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

Ugo Humbert won the title after defeating Laslo Djere 4–6, 7–5, 6–4 in the final.

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

	Semifinals							Final
		Daniel Elahi Galán	2	63
	6	Ugo Humbert	6	77
								6	Ugo Humbert	4	7	6
								4	Laslo Djere	6	5	4
	4	Laslo Djere	3	6	6
	2	Ben Shelton	6	3	4

	First round							Second round							Quarterfinals							Semifinals
								1	Y Nishioka	6	1	4
	WC	F Cobolli	7	1	2				DE Galán	2	6	6
		DE Galán	5	6	6											DE Galán	6	4	6
	Q	S Travaglia	3	78	4											B Gojo	3	6	3
		B Gojo	6	66	6				B Gojo	6	7
		Y Watanuki	6	4					Y Watanuki	4	5
	8	T Monteiro	4	2r																			DE Galán	2	63
																						6	U Humbert	6	77
								3	M McDonald	2	3
		A Kovacevic	1	6	1				T Daniel	6	6
		T Daniel	6	4	6											T Daniel	713	67	4
	WC	F Maestrelli	67	4											6	U Humbert	611	79	6
	LL	A Pellegrino	79	6				LL	A Pellegrino	77	1	1r
	Q	G Mager	4	3				6	U Humbert	62	6	3
	6	U Humbert	6	6

	First round							Second round							Quarterfinals							Semifinals
	Q	A Giannessi	3	79	6
		F Passaro	6	67	4			Q	A Giannessi	4	2
		T Kokkinakis	6	6					T Kokkinakis	6	6
		N Basilashvili	4	3												T Kokkinakis	6	1	1
	Q	S Diez	62	4											4	L Djere	3	6	6
	Alt	J Kovalík	77	6				Alt	J Kovalík	4	2
								4	L Djere	6	6
																						4	L Djere	3	6	6
	5	D Schwartzman	6	2	3																	2	B Shelton	6	3	4
	Alt	M Bellucci	2	6	6			Alt	M Bellucci	2	0
	WC	A Vavassori	60	6	4				G Zeppieri	6	6
		G Zeppieri	77	4	6											G Zeppieri	4	6	5
	Alt	L Nardi	3	6	4										2	B Shelton	6	4	7
	Alt	F Marozsán	6	4	6			Alt	F Marozsán	4	66
								2	B Shelton	6	78

• Main draw
• Qualifying draw