Singles
2015 Open de Nice Côte d'Azur
Final
Champion	Dominic Thiem
Runner-up	Leonardo Mayer
Score	6–7(8–10), 7–5, 7–6(7–2)
Details
Draw	28
Seeds	8
Events
Singles Doubles
← 2014 · Open de Nice Côte d'Azur · 2016 →

Ernests Gulbis was the defending champion, but lost to Dominic Thiem in the quarterfinals.
Thiem went on to win his first ATP title, defeating Leonardo Mayer in the final, 6–7^(8–10), 7–5, 7–6^(7–2).

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

	Semifinals							Final
		Borna Ćorić	4	3
	4	Leonardo Mayer	6	6
								4	Leonardo Mayer	710	5	62
									Dominic Thiem	68	7	77
		Dominic Thiem	77	6
	2	John Isner	65	3

	First round							Second round							Quarterfinals							Semifinals
								LL	Q Halys	60	65
	LL	F Tiafoe	77	5	2				J Duckworth	77	77
		J Duckworth	65	7	6											J Duckworth	3	63
		B Ćorić	7	6												B Ćorić	6	77
	Q	S Groth	5	3					B Ćorić	77	6
	Q	G Mina	6	0				Q	G Mina	64	3
	5	B Tomic	2	0r																			B Ćorić	4	3
																						4	L Mayer	6	6
								4	L Mayer	6	6
	WC	L Pouille	6	6				WC	L Pouille	4	0
		T Smyczek	3	0											4	L Mayer	6	6
		S Querrey	6	6											8	J Mónaco	3	4
	Q	R Bemelmans	2	3					S Querrey	3	1
		B Paire	4	2				8	J Mónaco	6	6
	8	J Mónaco	6	6

	First round							Second round							Quarterfinals							Semifinals
	6	N Kyrgios	77	6
		M Kukushkin	65	2				6	N Kyrgios	3r
		V Estrella Burgos	65	2					D Thiem	4
		D Thiem	77	6												D Thiem	6	6
		A Dolgopolov	3	7	6										3	E Gulbis	2	4
		S Stakhovsky	6	5	2				A Dolgopolov	5	6	1
								3	E Gulbis	7	4	6
																							D Thiem	77	6
	7	J Sock	7	5	1																	2	J Isner	65	3
		D Lajović	5	7	6				D Lajović	6	4	7
		P Carreño Busta	6	6					P Carreño Busta	3	6	5
	WC	M Hamou	2	2												D Lajović	63	4
		S Johnson	7	6											2	J Isner	77	6
	Q	M Venus	5	3					S Johnson	63	6	3
								2	J Isner	77	4	6

	First round							Second round							Qualifying competition
								1	Sam Groth	77	6
		Maxime Teixeira	6	6					Maxime Teixeira	63	2
	WC	Alexandre Massa	3	3											1	Sam Groth	w/o
		Guillermo Durán	w/o												6	Quentin Halys
	WC	Alexander Bublik							Guillermo Durán	4	63
								6	Quentin Halys	6	77

	First round							Second round							Qualifying competition
								2	Ruben Bemelmans	79	60	7
		Marcus Daniell	0	2					Yannik Reuter	67	77	5
		Yannik Reuter	6	6											2	Ruben Bemelmans	6	6
	WC	Gabriel Petit	2	4											5	Frances Tiafoe	3	3
		Daniil Medvedev	6	6					Daniil Medvedev	3	2
								5	Frances Tiafoe	6	6

	First round							Second round							Qualifying competition
								3	Gianni Mina	2	6	6
		André Sá	0	1					Mate Pavić	6	3	3
		Mate Pavić	6	6											3	Gianni Mina	4	6	6
		Wang Chieh-fu	1	77	2											Philipp Davydenko	6	4	3
		Philipp Davydenko	6	65	6				Philipp Davydenko	79	77
								8	Bastian Trinker	67	65

	First round							Second round							Qualifying competition
								4	Ante Pavić	6	6
	WC	Louis Tessa	3	4					Eric Butorac	2	2
		Eric Butorac	6	6											4	Ante Pavić	6	65	4
		Michael Venus	6	3	6											Michael Venus	3	77	6
		Gianluca Mager	4	6	3				Michael Venus	6	7
								7	Fabrice Martin	3	5

• Main draw
• Qualifying draw