Doubles
2018 Brasil Open
Final
Champions	Federico Delbonis Máximo González
Runners-up	Wesley Koolhof Artem Sitak
Score	6–4, 6–2
Events
Singles Doubles
← 2017 · Brasil Open · 2019 →

Rogério Dutra Silva and André Sá were the defending champions, but chose not to participate together. Sá teamed up with Thomaz Bellucci, but lost to Federico Delbonis and Máximo González in the quarterfinals. Dutra Silva played alongside Roman Jebavý, but lost to Delbonis and González in the semifinals.

Delbonis and González went on to win the title, defeating Wesley Koolhof and Artem Sitak in the final, 6–4, 6–2.

	First round							Quarterfinals							Semifinals							Final
	1	P Cuevas H Zeballos	6	6
		S Galdós G Pella	1	2				1	P Cuevas H Zeballos
	Alt	P Bernardi T Monteiro	3	4					C Berlocq N Kicker	w/o
		C Berlocq N Kicker	6	6												C Berlocq N Kicker	3	3
	4	W Koolhof A Sitak	6	77											4	W Koolhof A Sitak	6	6
		S Arends A Begemann	4	64				4	W Koolhof A Sitak	7	6
		R Carballés Baena G García López	6	7					R Carballés Baena G García López	5	4
	WC	D Descloix G Monfils	2	5																		4	W Koolhof A Sitak	4	2
		R Dutra Silva R Jebavý	6	77																			F Delbonis M González	6	6
		M Cecchinato A Ramos Viñolas	4	64					R Dutra Silva R Jebavý	6	6
	Alt	F Neis R Olivo	2	0r				3	G Durán A Molteni	4	3
	3	G Durán A Molteni	6	0												R Dutra Silva R Jebavý	5	6	[7]
		R Arneodo A Šančić	62	3												F Delbonis M González	7	3	[10]
	WC	T Bellucci A Sá	77	6				WC	T Bellucci A Sá	64	5
		F Delbonis M González	7	4	[10]				F Delbonis M González	77	7
	2	H Podlipnik-Castillo A Vasilevski	5	6	[5]

• Main draw