Doubles
2005 Croatia Open Umag
Final
Champions	Jiří Novák Petr Pála
Runners-up	Michal Mertiňák David Škoch
Score	6–3, 6–3
Events
Singles Doubles
← 2004 · Croatia Open · 2006 →

José Acasuso and Flávio Saretta were the defending champions, but none competed this year.

Jiří Novák and Petr Pála won the title by defeating Michal Mertiňák and David Škoch 6–3, 6–3 in the final.^[1]

	First round							Quarterfinals							Semifinals							Final
	1	J Novák P Pála	6	6
		I Bozoljac M Tkalec	2	1				1	J Novák P Pála	6	6
		L Švarc S Vagnozzi	2	2				WC	N Djokovic J Tipsarević	4	3
	WC	N Djokovic J Tipsarević	6	6											1	J Novák P Pála	77	77
	3	M Bertolini T Vanhoudt	77	0	66											JC Scherrer K Vliegen	62	61
		JC Scherrer K Vliegen	64	6	78				JC Scherrer K Vliegen	0	6	77
		A Montañés A Portas	1	2					Goran Dragicevic M Pehar	6	2	65
		Goran Dragicevic M Pehar	6	6																		1	J Novák P Pála	6	6
	WC	E Gulbis F Škugor	1	4																			M Mertiňák D Škoch	3	3
		D Ferrer F Vicente	6	6					D Ferrer F Vicente	6	6
		L Dlohuý J Vaněk	4	2				4	J Nieminen R Wassen	2	4
	4	J Nieminen R Wassen	6	6												D Ferrer F Vicente	1	4
		F Colangelo A Motti	1	66												M Mertiňák D Škoch	6	6
		Á Calatrava Á López Morón	6	78					Á Calatrava Á López Morón	77	2	3
		M Mertiňák D Škoch	4	6	7				M Mertiňák D Škoch	64	6	6
	2	M Fyrstenberg M Matkowski	6	4	5

• Official results archive (ATP)
• Official results archive (ITF)