Kei Nishikori defeated Santiago Giraldo in the final, 6–2, 6–2, to win the singles title at the 2014 Barcelona Open. He became the first non-Spanish player to win the tournament since 2002.

Rafael Nadal was the three-time defending champion, but lost to Nicolás Almagro in the quarterfinals, snapping a 41-match winning streak at the event and his first loss in Barcelona since 2003.

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	Rafael Nadal	6	65	4
	6	Nicolás Almagro	2	77	6
								6	Nicolás Almagro	5	3
									Santiago Giraldo	7	6
		Santiago Giraldo	6	4
	10	Philipp Kohlschreiber	4	3r
																Santiago Giraldo	2	2
															4	Kei Nishikori	6	6
	12	Marin Čilić	1	3
	4	Kei Nishikori	6	6
								4	Kei Nishikori	6	6
								9	Ernests Gulbis	2	4
	9	Ernests Gulbis	6	6
		Teymuraz Gabashvili	1	4

	First round							Second round							Third round							Quarterfinals
								1	R Nadal	77	6
		A Ramos	6	6					A Ramos	62	4
		N Davydenko	4	4											1	R Nadal	6	6
		I Dodig	6	65	6											I Dodig	3	3
	WC	F Argüello	3	77	2				I Dodig	6	6
								13	F López	1	4
																						1	R Nadal	6	65	4
																						6	N Almagro	2	77	6
								11	F Verdasco	6	6
		K de Schepper	6	7					K de Schepper	4	3
	Q	M İlhan	3	5											11	F Verdasco	3	3
		M Kližan	6	6											6	N Almagro	6	6
		S Devvarman	2	4					M Kližan	5	64
								6	N Almagro	7	77

	First round							Second round							Third round							Quarterfinals
								3	F Fognini	0	0r
		S Giraldo	6	6					S Giraldo	6	4
		I Sijsling	4	2												S Giraldo	4	6	7
		R Štěpánek	4	4											Q	D Thiem	6	4	5
	Q	D Thiem	6	6				Q	D Thiem	3	6	6
								14	M Granollers	6	3	2
																							S Giraldo	6	4
																						10	P Kohlschreiber	4	3r
								10	P Kohlschreiber	77	6
	Q	A Beck	2	2					É Roger-Vasselin	64	2
		É Roger-Vasselin	6	6											10	P Kohlschreiber	7	6
		M Kukushkin	65	6	3											J Melzer	5	3
		J Melzer	77	3	6				J Melzer	6	77
								7	J Janowicz	4	61

	First round							Second round							Third round							Quarterfinals
								5	T Robredo	6	6
		J Sousa	3	2					M Matosevic	3	4
		M Matosevic	6	6											5	T Robredo	5	77	65
	Q	A Kuznetsov	2	6	6										12	M Čilić	7	63	77
		P Carreño Busta	6	1	2			Q	A Kuznetsov	1	62
								12	M Čilić	6	77
																						12	M Čilić	1	3
																						4	K Nishikori	6	6
								16	B Paire	4	1r
	Q	M Viola	4	3					A Golubev	6	5
		A Golubev	6	6												A Golubev	0	4
		Ł Kubot	1	0											4	K Nishikori	6	6
		R Bautista Agut	6	6					R Bautista Agut	1	6	3
								4	K Nishikori	6	4	6

	First round							Second round							Third round							Quarterfinals
								8	A Dolgopolov	65	3
		A Montañés	77	6					A Montañés	77	6
	Q	M López	64	2												A Montañés	5	1
	WC	D Gimeno Traver	6	7											9	E Gulbis	7	6
	WC	R Carballés Baena	3	5				WC	D Gimeno Traver	5	61
								9	E Gulbis	7	77
																						9	E Gulbis	6	6
																							T Gabashvili	1	4
								15	D Tursunov	7	0	3
	WC	I Cervantes	3	6	6			WC	I Cervantes	5	6	6
		O Nedovyesov	6	2	4										WC	I Cervantes	4	2
		T Gabashvili	6	6												T Gabashvili	6	6
		M Przysiężny	3	4					T Gabashvili	6	6
								2	D Ferrer	4	2

	First round							Qualifying competition
	1	Dominic Thiem	6	6
		Steven Diez	3	3
								1	Dominic Thiem	7	6
								11	Márton Fucsovics	5	3
	Alt	Boy Westerhof	4	6	3
	11	Márton Fucsovics	6	3	6

	First round							Qualifying competition
	2	Stéphane Robert	6	7
		Enrique López Pérez	4	5
								2	Stéphane Robert	6	4	5
								7	Andreas Beck	4	6	7
		Flavio Cipolla	4	4
	7	Andreas Beck	6	6

	First round							Qualifying competition
	3	Evgeny Donskoy	63	6	6
		Jordi Samper-Montana	77	3	3
								3	Evgeny Donskoy	65	1
								12	Matteo Viola	77	6
		Gerard Granollers	4	2
	12	Matteo Viola	6	6

	First round							Qualifying competition
	4	Peter Gojowczyk	77	2	1r
	WC	Marc López	64	6	4
								WC	Marc López	7	6
									José Checa-Calvo	5	2
		José Checa-Calvo	6	3	710
	10	Ante Pavić	0	6	68

	First round							Qualifying competition
	5	Andrey Kuznetsov	78	6
	WC	Oriol Roca Batalla	66	2
								5	Andrey Kuznetsov	6	7
									Lorenzo Giustino	4	5
		Lorenzo Giustino	2	6	6
	9	Thomas Fabbiano	6	3	1

	First round							Qualifying competition
	6	Jesse Huta Galung	6	6
	WC	Pol Toledo Bagué	4	1
								6	Jesse Huta Galung	3	3
								8	Marsel İlhan	6	6
	WC	Juan Lizariturry	2	6	4
	8	Marsel İlhan	6	2	6

• Main Draw
• Qualifying Draw