Singles
2011 All Japan Indoor Tennis Championships
Champion	Dominik Meffert
Runner-up	Cedrik-Marcel Stebe
Score	4–6, 6–4, 6–2

Yuichi Sugita was the defending champion after defeating Matthew Ebden in the 2010 final. He was eliminated by Cedrik-Marcel Stebe already in the first round.
Stebe reached the final, but lost to Dominik Meffert 6–4, 4–6, 2–6.

Seeds

Draw

Finals

	Semifinals							Final
	1	Go Soeda	4	7	60
	Q	Cedrik-Marcel Stebe	6	64	7
								Q	Cedrik-Marcel Stebe	4	6	2
								5	Dominik Meffert	6	4	6
	7	Simon Stadler	1	3
	5	Dominik Meffert	6	6

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	G Soeda	7	6
		Hiroki Moriya	5	2				1	G Soeda	6	6
		D Udomchoke	6	6					D Udomchoke	2	2
		N Monroe	4	3											1	G Soeda	6	6
	WC	T Suzuki	5	r											6	S Rieschick	2	4
		H Kondo	4						H Kondo	6	4	2
		P Oswald	0	4				6	S Rieschick	4	6	6
	6	S Rieschick	6	6																		1	G Soeda	0	7	60
	4	Y Sugita	6	1	1																	Q	C-M Stebe	6	64	7
	Q	C-M Stebe	3	6	6			Q	C-M Stebe	6	6
	WC	Kento Takeuchi	4	4					T Fabbiano	3	1
		T Fabbiano	6	6											Q	C-M Stebe	6	6
		K Kim	7	7											8	A Begemann	2	4
		M Ryderstedt	65	5					K Kim	61	66
		W-s Jun	3	7	64			8	A Begemann	7	7
	8	A Begemann	6	65	7

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	7	S Stadler	6	6
		G Naso	4	3				7	S Stadler	6	6
		T-h Yang	64	5				Q	T Fernandes	0	4
	Q	T Fernandes	7	7											7	S Stadler	6	7
		Y-k Lim	60	4											3	T Ito	4	63
	Q	Sho Katayama	7	6				Q	Sho Katayama	62	5
		C Ebelthite	3	0				3	T Ito	7	7
	3	T Ito	6	6																		7	S Stadler	1	3
	5	D Meffert	6	6																		5	D Meffert	6	6
		V Vardhan	4	4				5	D Meffert	7	6
		J Lemke	4	2				Q	P Gojowczyk	5	3
	Q	P Gojowczyk	6	6											5	D Meffert	6	6
	WC	T Matsui	1	4											2	M Bachinger	4	4
	WC	Y Uchiyama	6	6				WC	Y Uchiyama	4	3
		A Kumantsov	5	0r				2	M Bachinger	6	6
	2	M Bachinger	7	3

References

• Main Draw
• Qualifying Draw