Singles
2023 Porto Open
Champion	Luca Nardi
Runner-up	João Sousa
Score	5–7, 6–4, 6–1

Altuğ Çelikbilek was the two-time defending champion^[1] but lost in the second round to Antoine Escoffier.

Luca Nardi won the title after defeating João Sousa 5–7, 6–4, 6–1 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Jules Marie	64	0
	WC	João Sousa	77	6
								WC	João Sousa	7	4	1
								4	Luca Nardi	5	6	6
	4	Luca Nardi	77	6
	7	Antoine Escoffier	63	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	Q Halys	5	5
	WC	G Elias	7	7				WC	G Elias	4	3
		Jules Marie	6	6					J Marie	6	6
		B Lock	3	4												J Marie	3	79	6
	Q	J Domingues	2	6	3											D Yevseyev	6	67	4
		D Yevseyev	6	3	6				D Yevseyev	3	6	7
	Q	J Härteis	63	62				6	Em Nava	6	3	5
	6	Em Nava	77	77																			J Marie	64	0
	3	H Grenier	4	3																		WC	J Sousa	77	6
	Q	Jaime Faria	6	6				Q	J Faria	77	4	4
	PR	P-H Herbert	6	6				PR	P-H Herbert	61	6	6
		L Lokoli	4	4											PR	P-H Herbert	64	2
	Q	K de Schepper	4	4											WC	J Sousa	77	6
		A Kachmazov	6	6					A Kachmazov	2	2
	WC	J Sousa	65	6	6			WC	J Sousa	6	6
	5	M Bellucci	77	4	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	R Berankis	6	4	65
		P Gojowczyk	2	6	77				P Gojowczyk	6	3	2
		A Andreev	6	77					A Andreev	2	6	6
		Dominik Palán	3	62												A Andreev	4	3
		G Oliveira	6	6											4	L Nardi	6	6
	Q	Lucas Poullain	4	0					G Oliveira	4	6	3
		N Mejía	6	2	3			4	L Nardi	6	3	6
	4	L Nardi	3	6	6																	4	L Nardi	77	6
	7	A Escoffier	6	6																		7	A Escoffier	63	4
		L Giustino	3	4				7	A Escoffier	6	711
		F Ferreira Silva	4	78	3				A Çelikbilek	4	69
		A Çelikbilek	6	66	6										7	A Escoffier	6	6
	WC	H Rocha	6	4	6											S Diez	3	4
	Q	R Strombachs	4	6	4			WC	H Rocha	3	2
		S Diez	6	6					S Diez	6	6
	2	B Bonzi	4	4

References

External links

• Main draw
• Qualifying draw