Singles
2005 St. Petersburg Open
Champion	Thomas Johansson
Runner-up	Nicolas Kiefer
Score	6–4, 6–2

Mikhail Youzhny was the defending champion, but lost in the quarterfinals this year.

Thomas Johansson won the title, beating Nicolas Kiefer 6–4, 6–2 in the final.

Seeds

Draw

Finals

	Semifinals							Final
	5	Nicolas Kiefer	6	6
		Robin Vik	3	4
								5	Nicolas Kiefer	4	2
								2	Thomas Johansson	6	6
	8	Fernando Verdasco	3	6	3
	2	Thomas Johansson	6	3	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	N Davydenko	6	6
		L Dlouhý	2	1				1	N Davydenko	6	6
		P Goldstein	78	2	6				P Goldstein	3	4
		L Burgsmüller	66	6	3										1	N Davydenko	1	1
	WC	V Davletshin	3	4											5	N Kiefer	6	6
		J Melzer	6	6					J Melzer	6	3	5
		G García-López	3	6	4			5	N Kiefer	3	6	7
	5	N Kiefer	6	3	6																	5	N Kiefer	6	6
	4	M Youzhny	6	4																			R Vik	3	4
		K Beck	3	1r				4	M Youzhny	6	6
	WC	I Kunitsyn	3	2					C Saulnier	1	1
		C Saulnier	6	6											4	M Youzhny	6	4	2
		F Serra	62	6	6											R Vik	1	6	6
	Q	J Björkman	77	3	4				F Serra	63	6	3
		R Vik	6	6					R Vik	77	2	6
	6	J Nieminen	4	4

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	F Verdasco	77	4	6
	WC	M Philippoussis	64	6	2			8	F Verdasco	7	6
	Q	T Gabashvili	3	3					J Mónaco	5	3
		J Mónaco	6	6											8	F Verdasco	6	6
		A Popp	3	6	4											K Carlsen	4	2
	Q	S Stakhovsky	6	4	6			Q	S Stakhovsky	77	62	66
		K Carlsen	64	77	6				K Carlsen	65	77	78
	3	M Mirnyi	77	65	4																	8	F Verdasco	3	6	3
	7	G Rusedski	6	6																		2	T Johansson	6	3	6
		D Tursunov	4	4				7	G Rusedski	4	6	6
		I Minář	1	6	5				K Kim	6	3	4
		K Kim	6	4	7										7	G Rusedski	2	66
	Q	J Vaněk	3	65											2	T Johansson	6	78
		A Pavel	6	77					A Pavel	2	2
		P Kohlschreiber	3	4				2	T Johansson	6	6
	2	T Johansson	6	6

References

• Main Draw
• Qualifying Draw