Doubles
2004 Mutua Madrileña Masters Madrid
Final
Champions	Mark Knowles Daniel Nestor
Runners-up	Bob Bryan Mike Bryan
Score	6–3, 6–4
Events
Singles Doubles
← 2003 · Mutua Madrileña Masters Madrid · 2005 →

Mahesh Bhupathi andMax Mirnyi were the defending champions, but lost in semifinals toMark Knowles andDaniel Nestor.

Mark Knowles andDaniel Nestor won the title, defeatingBob andMike Bryan 6–3, 6–4 in the final. It was the 35th doubles title for Knowles and the 37th doubles title for Nestor, in their respective careers. It was also the 5th and final title of the year for the pair.

Key

	First round							Quarterfinals							Semifinals							Final
	1	M Knowles D Nestor	64	6	6
		J Knowle N Zimonjić	77	2	2			1	M Knowles D Nestor	6	3	6
		F González N Massú	5	0r					G Etlis M Rodríguez	3	6	3
		G Etlis M Rodríguez	7	0											1	M Knowles D Nestor	6	77
	3	M Bhupathi M Mirnyi	6	77											3	M Bhupathi M Mirnyi	4	63
		L Paes D Rikl	4	64				3	M Bhupathi M Mirnyi	6	6
		D Hrbatý R Schüttler	6	4					D Hrbatý R Schüttler	4	2
	WC	R Nadal T Robredo	4	1r																		1	M Knowles D Nestor	6	6
		W Arthurs P Hanley	6	6																		2	B Bryan M Bryan	3	4
		G Cañas T Haas	3	3					W Arthurs P Hanley	67	77	2
		J Palmer P Vízner	63	4				Alt	M Damm C Suk	79	64	6
	Alt	M Damm C Suk	77	6											Alt	M Damm C Suk	65	5
		J Björkman J Erlich	66	62											2	B Bryan M Bryan	77	7
		JI Chela A Pavel	78	77					JI Chela A Pavel	4	4
	WC	A Ram M Safin	2	4				2	B Bryan M Bryan	6	6
	2	B Bryan M Bryan	6	6

• Main Draw (ATP)

• 2004 Mutua Madrileña Masters Madrid

• Articles with short description
• Short description matches Wikidata