Singles
2018 Lisboa Belém Open
Champion	Tommy Robredo
Runner-up	Cristian Garín
Score	3–6, 6–3, 6–2

Oscar Otte was the defending champion but chose not to defend his title.

Tommy Robredo won the title after defeating Cristian Garín 3–6, 6–3, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
		Cristian Garín	5	7	6
	4	Pedro Sousa	7	5	4
									Cristian Garín	6	3	2
									Tommy Robredo	3	6	6
	6	Sebastian Ofner	6	4	1
		Tommy Robredo	3	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1/WC	T Daniel	77	77
	WC	João Monteiro	64	62				1/WC	T Daniel	6	3	77
	Q	Edoardo Eremin	5	6	4				L Rosol	1	6	64
		L Rosol	7	3	6										1/WC	T Daniel	6	1	0
	Q	JP Ficovich	3	5												C Garín	4	6	6
		C Garín	6	7					C Garín	6	77
		R Olivo	1	1r				8	J Munar	4	64
	8	J Munar	6	4																			C Garín	5	7	6
	4	P Sousa	6	7																		4	P Sousa	7	5	4
	WC	F Gil	2	5				4	P Sousa	6	6
		L Giustino	7	1	79				L Giustino	2	0
	Q	J De Loore	5	6	67										4	P Sousa	6	6
		G Oliveira	3	5												F Auger-Aliassime	3	1
		F Auger-Aliassime	6	7					F Auger-Aliassime	6	7
		J Domingues	6	6					J Domingues	4	5
	5	M Arévalo	2	2

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	S Ofner	6	6
	WC	T Cação	0	3				6	S Ofner	6	6
		E King	3	0					M Krueger	3	4
		M Krueger	6	6											6	S Ofner	6	7
		M Kecmanović	6	77												M Kecmanović	4	5
		T Bellucci	3	64					M Kecmanović	6	6
		D Novak	65	1				LL	F Gaio	4	2
	LL	F Gaio	77	6																		6	S Ofner	6	4	1
	7	L Broady	77	6																			T Robredo	3	6	6
		S Robert	63	4				7	L Broady	3	6	3
		T Robredo	6	6					T Robredo	6	4	6
		R Ojeda Lara	2	2												T Robredo	7	6
		C Harrison	6	6												C Harrison	5	1
		G Sakharov	0	4					C Harrison	5	710	6
	Q	A Davidovich Fokina	77	6				Q	A Davidovich Fokina	7	68	1
	2	A de Minaur	65	4

References

• Main draw
• Qualifying draw