Singles
2006 PBZ Zagreb Indoors
Final
Champion	Ivan Ljubičić
Runner-up	Stefan Koubek
Score	6–3, 6–4
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 2005 · PBZ Zagreb Indoors · 2007 →

Ivan Ljubičić won the title, defeating Stefan Koubek 6–3, 6–4 in the final.

Seeds

Draw

Key

Finals

	Semifinals							Final
	1	Ivan Ljubičić	66	6	6
		Novak Djokovic	78	3	4
								1	Ivan Ljubičić	6	6
								Q	Stefan Koubek	3	4
		Tim Henman	3	6	2
	Q	Stefan Koubek	6	3	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	I Ljubičić	4	6	6
	WC	A Murray	6	2	3			1	I Ljubičić	77	6
		J Hernych	2	4					K Carlsen	65	4
		K Carlsen	6	6											1	I Ljubičić	6	6
		T Zíb	4	6	1											M Youzhny	3	2
		M Youzhny	6	3	6				M Youzhny	2	77	77
		P Starace	6	5	3			6	J Nieminen	6	63	60
	6	J Nieminen	3	7	6																	1	I Ljubičić	66	6	6
	4	R Štěpánek	6	77																			N Djokovic	78	3	4
	Q	T Cakl	3	62				4	R Štěpánek	3	4
		N Djokovic	6	7					N Djokovic	6	6
		R Vik	1	5												N Djokovic	6	6
		D Bracciali	4	65											Q	I Bozoljac	2	3
	Q	I Bozoljac	6	77				Q	I Bozoljac	77	6
		R Söderling	64	6	1			8	F López	65	2
	8	F López	77	4	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	I Andreev	3	6	3
	WC	M Čilić	6	1	6			WC	M Čilić	6	4	4
		A Seppi	6	6					A Seppi	4	6	6
	Q	N Okun	2	4												A Seppi	3	4
		A Clément	3	3												T Henman	6	6
		T Henman	6	6					T Henman	6	6
		D Sanguinetti	3	0				WC/3	R Gasquet	4	4
	WC/3	R Gasquet	6	6																			T Henman	3	6	2
	5	M Ančić	6	4	6																	Q	S Koubek	6	3	6
		D Tursunov	3	6	4			5	M Ančić	67	64
		R Schüttler	60	3					I Karlović	79	77
		I Karlović	77	6												I Karlović	64	78	3
	Q	S Koubek	79	3	6										Q	S Koubek	77	66	6
		I Minář	67	6	3			Q	S Koubek	6	6
		S Wawrinka	4	6	6				S Wawrinka	4	4
	2	D Ferrer	6	1	3