Singles
2023 Oeiras Indoors II
Champion	Arthur Fils
Runner-up	Joris De Loore
Score	6–1, 7–6(7–4)

Joris De Loore was the defending champion^[1] but lost in the final to Arthur Fils.

Fils won the title after defeating De Loore 6–1, 7–6^(7–4) in the final.

Seeds

Draw

Finals

	Semifinals							Final
	1	Ričardas Berankis	5	3
	4	Arthur Fils	7	6
								4	Arthur Fils	6	77
								SE	Joris De Loore	1	64
		Pierre-Hugues Herbert	2	4
	SE	Joris De Loore	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	R Berankis	77	6
		M Valkusz	63	1				1	R Berankis	5	6	6
	Q	M Lajal	4	4r					L Gerch	7	4	4
		Lucas Gerch	6	5											1	R Berankis	7	78
		E Karlovskiy	0	0r											Q	D Prižmić	5	66
	Q	D Prižmić	6	3				Q	D Prižmić	2	6	6
	Q	Sebastian Fanselow	6	3	6			Q	S Fanselow	6	2	2
	6	H Mayot	2	6	4																	1	R Berankis	5	3
	4	A Fils	6	0	6																	4	A Fils	7	6
		L Wessels	3	6	2			4	A Fils	7	6
		J Domingues	2	3				Q	C İlkel	5	2
	Q	C İlkel	6	6											4	A Fils	6	6
		L Neumayer	2	2												M Neuchrist	3	1
	WC	G Oliveira	6	6				WC	G Oliveira	64	3
		M Neuchrist	4	6	7				M Neuchrist	77	6
	8	S Diez	6	3	5

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	N Sánchez Izquierdo	63	3
	WC	P Sousa	77	6				WC	P Sousa	3	7	6
	Q	G Décamps	61	77	4				P Martín Tiffon	6	5	4
		Pol Martín Tiffon	77	65	6										WC	P Sousa	1	4
		A Dougaz	4	5												P-H Herbert	6	6
		FC Jianu	6	7					FC Jianu	6	3	2
		P-H Herbert	3	6	6				P-H Herbert	3	6	6
	3	M Gigante	6	4	4																		P-H Herbert	2	4
	5	H Međedović	64	3																		SE	J De Loore	6	6
	SE	J De Loore	77	6				SE	J De Loore	6	6
		V Vacherot	5	4					R Collignon	4	3
		R Collignon	7	6											SE	J De Loore	6	6
	Q	Elmar Ejupovic	4	5												L Giustino	2	4
		L Giustino	6	7					L Giustino	6	77
	WC	Jaime Faria	4	3				2	J Clarke	3	64
	2	J Clarke	6	6

References

External links

• Main draw
• Qualifying draw