Men's singles
2005 Italian Open
Final
Champion	Rafael Nadal
Runner-up	Guillermo Coria
Score	6–4, 3–6, 6–3, 4–6, 7–6(8–6)
Details
Draw	64
Seeds	16
Events
Singles men women Doubles men women
← 2004 · Italian Open · 2006 →

Rafael Nadal defeated Guillermo Coria in the final, 6–4, 3–6, 6–3, 4–6, 7–6^(8–6) to win the men's singles title at the 2005 Italian Open. Nadal was making his tournament debut.

Carlos Moyá was the defending champion, but lost in the first round to Potito Starace.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

	Semifinals							Final
	9	Guillermo Coria	7	77
	6	Andre Agassi	5	60
								9	Guillermo Coria	4	6	3	6	66
								5	Rafael Nadal	6	3	6	4	78
		David Ferrer	6	4	5
	5	Rafael Nadal	4	6	7

	First round							Second round							Third round							Quarterfinals
	1	A Roddick	6	6
		G Rusedski	4	2				1	A Roddick	6	7
		Á Costa	6	6					Á Costa	4	5
	Q	A Montañés	4	4											1	A Roddick	77	63	4
	Q	S Wawrinka	6	6												F Verdasco	61	77	6
		T Berdych	1	4				Q	S Wawrinka	68	2
		F Verdasco	6	7					F Verdasco	710	6
	14	N Davydenko	3	5																			F Verdasco	6	3	3
	9	G Coria	77	5	6																	9	G Coria	3	6	6
		F González	65	7	4			9	G Coria	6	6
		N Kiefer	6	6					N Kiefer	1	1
		T Haas	3	1											9	G Coria	6	6
		M Mirnyi	7	4	66										WC	D Sanguinetti	0	4
	WC	D Sanguinetti	5	6	78			WC	D Sanguinetti	6	7
		F Santoro	6	1	6				F Santoro	3	5
	8	D Nalbandian	4	6	4

	First round							Second round							Third round							Quarterfinals
	4	T Henman	6	6
		G Kuerten	3	3				4	T Henman	6	6
		N Massú	6	6					N Massú	3	2
	Q	P-H Mathieu	0	4											4	T Henman	3	6	3
		R Mello	4	3												D Hrbatý	6	3	6
		D Hrbatý	6	6					D Hrbatý	77	6
	Q	J Benneteau	6	6				Q	J Benneteau	64	0
	13	T Robredo	1	0																			D Hrbatý	3	3
	12	I Ljubičić	6	6																		6	A Agassi	6	6
		O Rochus	3	3				12	I Ljubičić	6	3	6
		K Carlsen	3	2					S Grosjean	4	6	3
		S Grosjean	6	6											12	I Ljubičić	64	3
	Q	R Gasquet	6	6											6	A Agassi	77	6
		P Srichaphan	0	2				Q	R Gasquet	2	3
	WC	A di Mauro	5	2				6	A Agassi	6	6
	6	A Agassi	7	6

	First round							Second round							Third round							Quarterfinals
	7	C Moyà	4	67
	WC	P Starace	6	79				WC	P Starace	3	6	3
	LL	A Martín	6	1				LL	A Martín	6	3	6
		R Schüttler	0	0r											LL	A Martín	6	6
		F Mayer	6	3	5											L Horna	1	3
		L Horna	4	6	7				L Horna	2	6	6
	WC	A Seppi	6	6				WC	A Seppi	6	3	4
	10	J Johansson	1	2																		LL	A Martín	2	6	5
	16	T Johansson	6	6																			D Ferrer	6	3	7
		F López	3	2				16	T Johansson	3	4
		C Saulnier	1	3					D Ferrer	6	6
		D Ferrer	6	6												D Ferrer	6	6
		F Volandri	6	6											3	G Gaudio	0	1
		Y El Aynaoui	0	2					F Volandri	4	2
		K Beck	4	3				3	G Gaudio	6	6
	3	G Gaudio	6	6

	First round							Second round							Third round							Quarterfinals
	5	R Nadal	6	6
		M Youzhny	0	2				5	R Nadal	6	6
	Q	V Hănescu	6	3	6			Q	V Hănescu	1	1
		J Melzer	4	6	3										5	R Nadal	6	6
	Q	J Mónaco	6	6											11	G Cañas	3	1
		R Söderling	3	2				Q	J Mónaco	0	0
		A Pavel	5	2				11	G Cañas	6	6
	11	G Cañas	7	6																		5	R Nadal	5	6	6
	15	R Štěpánek	6	65	6																	15	R Štěpánek	7	1	1
		M Ančić	1	77	3			15	R Štěpánek	6	4	6
		M Llodra	4	4					J I Chela	4	6	1
		J I Chela	6	6											15	R Štěpánek	4	6	6
	Q	N Almagro	3	6	6										Q	N Almagro	6	4	2
		I Andreev	6	4	1			Q	N Almagro	6	6
		J Novák	77	1	1			2	M Safin	4	3
	2	M Safin	63	6	6

• 2005 Internazionali BNL d'Italia Singles draw
• Men's singles draw
• Men's qualifying singles draw