Defending champion Rafael Nadal defeated Dominic Thiem in the final, 6–4, 6–1 to win the singles tennis title at the 2017 Barcelona Open. It was his record-extending tenth Barcelona Open title.

All seeds receive a bye into the second round.

Click on the seed number of a player to go to their draw section.

	Quarterfinals							Semifinals							Final
	1/WC	Andy Murray	2	6	77
	10	Albert Ramos Viñolas	6	4	64
								1/WC	Andy Murray	2	6	4
								4	Dominic Thiem	6	3	6
	4	Dominic Thiem	6	6
	LL	Yūichi Sugita	1	2
															4	Dominic Thiem	4	1
															3	Rafael Nadal	6	6
	Q	Chung Hyeon	61	2
	3	Rafael Nadal	77	6
								3	Rafael Nadal	6	6
									Horacio Zeballos	3	4
		Karen Khachanov	4	1
		Horacio Zeballos	6	6

	First round							Second round							Third round							Quarterfinals
								1/WC	A Murray	w/o
		B Tomic	7	4	6				B Tomic
		D Brown	5	6	2										1/WC	A Murray	6	6
		G García López	4	4											16	F López	4	4
	WC	A Montañés	6	6				WC	A Montañés	2	2
								16	F López	6	6
																						1/WC	A Murray	2	6	77
																						10	A Ramos Viñolas	6	4	64
								10	A Ramos Viñolas	78	6
		R Albot	2	2				Q	C Ruud	66	4
	Q	C Ruud	6	6											10	A Ramos Viñolas	6	3	6
		J-L Struff	7	6											6	R Bautista Agut	2	6	4
		P-H Herbert	5	3					J-L Struff	1	3
								6	R Bautista Agut	6	6

	First round							Second round							Third round							Quarterfinals
								4	D Thiem	6	6
		K Edmund	6	6					K Edmund	1	4
		J Chardy	3	4											4	D Thiem	77	6
		D Evans	64	6	77											D Evans	65	2
	Q	T Monteiro	77	2	62				D Evans	6	6
								14	M Zverev	4	4
																						4	D Thiem	6	6
																						LL	Y Sugita	1	2
								9	R Gasquet	6	3	63
	LL	Y Sugita	6	6				LL	Y Sugita	4	6	77
	WC	T Robredo	4	3											LL	Y Sugita	6	6
	WC	M Ymer	4	3											7	P Carreño Busta	3	3
		A Seppi	6	6					A Seppi	4	2
								7	P Carreño Busta	6	6

	First round							Second round							Third round							Quarterfinals
								8/WC	A Zverev	77	4	6
		N Almagro	6	6					N Almagro	64	6	4
	Q	S Diez	3	4											8/WC	A Zverev	1	4
		D Istomin	4	4											Q	H Chung	6	6
	Q	H Chung	6	6				Q	H Chung	6	6
								12	P Kohlschreiber	3	4
																						Q	H Chung	61	2
																						3	R Nadal	77	6
								13	D Ferrer	3	4
		K Anderson	2	77	6				K Anderson	6	6
		C Berlocq	6	64	3											K Anderson	3	4
		R Olivo	1	1											3	R Nadal	6	6
		R Dutra Silva	6	6					R Dutra Silva	1	2
								3	R Nadal	6	6

	First round							Second round							Third round							Quarterfinals
								5	D Goffin	7	6
	Q	T Daniel	3	1					N Basilashvili	5	0
		N Basilashvili	6	6											5	D Goffin	79	3	4
		K Khachanov	6	6												K Khachanov	67	6	6
		T Bellucci	3	4					K Khachanov	77	77
								11	P Cuevas	65	65
																							K Khachanov	4	1
																							H Zeballos	6	6
								15	J Sousa	63	5
	Q	S Giraldo	2	3					H Zeballos	77	7
		H Zeballos	6	6												H Zeballos	6	3	77
		M Granollers	77	6											17	B Paire	4	6	63
		M Jaziri	63	3					M Granollers	3	66
								17	B Paire	6	78

	First round							Qualifying competition
	1	Thiago Monteiro	6	64	6
		Lukáš Rosol	3	77	3
								1	Thiago Monteiro	6	64	6
									Jordi Samper Montaña	1	77	1
		Jordi Samper Montaña	4
	10	Kenny de Schepper	5r

	First round							Qualifying competition
	2	Yūichi Sugita	77	6
	WC	Nicola Kuhn	65	2
								2	Yūichi Sugita	4	67
									Steven Diez	6	79
		Steven Diez	77	6
	12	Uladzimir Ignatik	62	4

	First round							Qualifying competition
	3	Chung Hyeon	77	6
		Ernests Gulbis	62	2
								3	Chung Hyeon	6	6
								11	Guido Pella	2	4
		Marco Trungelliti	3	3
	11	Guido Pella	6	6

	First round							Qualifying competition
	4	Santiago Giraldo	2	77	6
		Enrique López Pérez	6	64	3
								4	Santiago Giraldo	5	6	6
								WC	Alejandro Davidovich Fokina	7	3	2
	WC	Alejandro Davidovich Fokina	3	6	6
	7	Roberto Carballés Baena	6	2	2

	First round							Qualifying competition
	5	Taro Daniel	6	6
	WC	Jaume Munar	2	1
								5	Taro Daniel	6	6
									Daniel Brands	2	4
		Daniel Brands	6	3	6
	9	Íñigo Cervantes	4	6	1

	First round							Qualifying competition
	6	Andrey Rublev	61	6	3
		Daniel Masur	77	3	6
									Daniel Masur	0	2
								8	Casper Ruud	6	6
	WC	Oriol Roca Batalla	4	1
	8	Casper Ruud	6	6

• Main Draw
• Qualifying Draw