Singles
2015 Swiss Open Gstaad
Final
Champion	Dominic Thiem
Runner-up	David Goffin
Score	7–5, 6–2
Events
Singles Doubles
← 2014 · Swiss Open Gstaad · 2016 →

Pablo Andújar was the defending champion, but lost to Thomaz Bellucci in the quarterfinals.

Dominic Thiem won the title, defeating David Goffin in the final, 7–5, 6–2.

Seeds

The top four seeds receive a bye into the second round.

Draw

Key

Finals

	Semifinals							Final
	1	David Goffin	6	6
	5	Thomaz Bellucci	4	2
								1	David Goffin	5	2
								3	Dominic Thiem	7	6
	3	Dominic Thiem	6	65	6
	2	Feliciano López	3	77	3

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	D Goffin	6	6
	WC	A Rublev	4	61				Q	H Zeballos	1	1
	Q	H Zeballos	6	77											1	D Goffin	67	6	77
	Q	M Teixeira	0	4											6	J Sousa	79	4	61
		D Istomin	6	6					D Istomin	78	3	64
	WC	H Laaksonen	2	5				6	J Sousa	66	6	77
	6	J Sousa	6	7																		1	D Goffin	6	6
																						5	T Bellucci	4	2
								4	P Andújar	7	6
	Q	C Hemery	5	2					D Lajović	5	2
		D Lajović	7	6											4	P Andújar	6	4	1
	PR	S Robert	6	6											5	T Bellucci	3	6	6
		J Souza	1	4				PR	S Robert	3	2
		K Coppejans	2	3				5	T Bellucci	6	6
	5	T Bellucci	6	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	P Carreño Busta	6	6
		M Youzhny	1	2				7	P Carreño Busta	77	6
		R Haase	1	77	6				R Haase	63	4
		M Granollers	6	61	4										7	P Carreño Busta	4	6	2
	WC	M Chiudinelli	4	2											3	D Thiem	6	3	6
		F Delbonis	6	6					F Delbonis	3	4
								3	D Thiem	6	6
																						3	D Thiem	6	65	6
	8	S Giraldo	6	6																		2	F López	3	77	3
		P Lorenzi	3	2				8	S Giraldo	6	6
		M İlhan	6	6					M İlhan	2	3
		A Kuznetsov	1	2											8	S Giraldo	64	4
		B Kavčič	6	0r											2	F López	77	6
	Q	J Reister	4	2				Q	J Reister	6	4	1
								2	F López	2	6	6

Qualifying

Seeds

Qualifiers

Qualifying draw

First qualifier

	First round							Second round							Qualifying competition
	1	Facundo Bagnis	66	1
		Victor Hănescu	78	6
									Victor Hănescu	3	6	3
									Maxime Teixeira	6	1	6
		Nikola Mektić	61	64
		Maxime Teixeira	77	77
																Maxime Teixeira	77	714
																Daniil Medvedev	65	612
	WC	Loïc Perret	2	4
		Juan Ignacio Londero	6	6
									Juan Ignacio Londero	3	0
									Daniil Medvedev	6	6
		Daniil Medvedev	6	6
	8	Matteo Viola	4	4

Second qualifier

	First round							Second round							Qualifying competition
	2	Horacio Zeballos	6	77
		Alexandar Lazov	1	62
								2	Horacio Zeballos	6	6
									Tomás Lipovšek Puches	4	3
		Fernando Romboli	3	3
		Tomás Lipovšek Puches	6	6
															2	Horacio Zeballos	6	6
																Pedro Cachin	2	4
	WC	Jessy Kalambay	3	2
		Pedro Cachin	6	6
									Pedro Cachin	3	6	6
								6	Laslo Djere	6	1	1
		Ivo Klec	4	4
	6	Laslo Djere	6	6

Third qualifier

	First round							Second round							Qualifying competition
	3	Kenny de Schepper	77	6
		Kirill Dmitriev	61	4
								3	Kenny de Schepper	6	77
									Antonio Veić	3	63
		Antonio Veić	6	3	6
		Yann Marti	3	6	0
															3	Kenny de Schepper	3	3
															PR	Julian Reister	6	6
		Adrien Bossel	6	6
	WC	Luca Margaroli	2	2
									Adrien Bossel	3	4
								PR	Julian Reister	6	6
	PR	Julian Reister	6	6
	7	Giovanni Lapentti	4	1

Fourth qualifier

	First round							Second round							Qualifying competition
	4	Gerald Melzer	6	6
		Vijay Sundar Prashanth	2	2
								4	Gerald Melzer	5	5
									Calvin Hemery	7	7
		Michael Linzer	77	68	4
		Calvin Hemery	62	710	6
																Calvin Hemery	1	6	6
															5	Andrea Arnaboldi	6	3	2
	WC	Jacob Kahoun	3	4
		Federico Gaio	6	6
									Federico Gaio	4	2
								5	Andrea Arnaboldi	6	6
		Anton Zaitcev	3	77	4
	5	Andrea Arnaboldi	6	65	6