Singles
2011 Gerry Weber Open
Final
Champion	Philipp Kohlschreiber
Runner-up	Philipp Petzschner
Score	7–6(7–5), 2–0 ret.
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 2010 · Gerry Weber Open · 2012 →

Lleyton Hewitt was the defending champion, but lost to Philipp Kohlschreiber in the quarterfinals.

Kohlschreiber won the tournament, defeating Philipp Petzschner in an all-German final, the first in the tournament's history, after Petzschner retired in the second set at a score of 7–6, 2–0.

	Semifinals							Final
		Philipp Kohlschreiber	6	6
	3	Gaël Monfils	3	3
									Philipp Kohlschreiber	77	2
									Philipp Petzschner	65	0r
		Philipp Petzschner	79	2	6
	2	Tomáš Berdych	67	6	3

	First round							Second round							Quarterfinals							Semifinals
	LL	L Mayer	2	3
		L Hewitt	6	6					L Hewitt	6	6
		A Seppi	6	66	6				A Seppi	4	4
	WC	T Haas	2	78	3											L Hewitt	64	3
		P Kohlschreiber	6	3	6											P Kohlschreiber	77	6
	Q	C-M Stebe	4	6	1				P Kohlschreiber	6	77
		R Haase	77	4	4			7	A Dolgopolov	3	65
	7	A Dolgopolov	64	6	6																		P Kohlschreiber	6	6
	3	G Monfils	6	6																		3	G Monfils	3	3
	Q	F Serra	4	3				3	G Monfils	6	6
		P Riba	64	66					I Dodig	2	3
		I Dodig	77	78											3	G Monfils	6	6
		J Nieminen	62	3											6	F Mayer	4	4
		Y-h Lu	77	6					Y-h Lu	64	6	4
	WC	D Brown	66	6	3			6	F Mayer	77	3	6
	6	F Mayer	78	2	6

	First round							Second round							Quarterfinals							Semifinals
	8	M Raonic	6	6
		P Andújar	3	1				8	M Raonic	77	6
		T Kamke	4						T Kamke	62	3
		J Reister	3r												8	M Raonic	3	78	3
		A Golubev	6	65	2											P Petzschner	6	66	6
		D Gimeno-Traver	1	77	6				D Gimeno-Traver	2	4
		P Petzschner	6	77					P Petzschner	6	6
	LL	D Meffert	2	65																			P Petzschner	79	2	6
	5	V Troicki	6	6																		2	T Berdych	67	6	3
	WC	M Zverev	2	3				5	V Troicki	6	6
		I Andreev	6	6					I Andreev	3	1
		P Starace	4	4											5	V Troicki	63	1
		S Stakhovsky	3	77	68										2	T Berdych	77	6
	Q	J Hernych	6	65	710			Q	J Hernych	3	67
	Q	R Bemelmans	7	68	4			2	T Berdych	6	7
	2	T Berdych	5	710	6

• ATP main draw
• ATP singles results