Singles
2008 Gerry Weber Open
Final
Champion	Roger Federer
Runner-up	Philipp Kohlschreiber
Score	6–3, 6–4
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 2007 · Gerry Weber Open · 2009 →

Tomáš Berdych was the defending champion, but lost in the second round to Robin Söderling.

Roger Federer won in the final 6–3, 6–4, against Philipp Kohlschreiber.^[1] It was Federer's record-extending fifth singles title in Halle, after previously winning four consecutive titles (2003–06) and skipping the tournament in 2007 due to fatigue.^[2] He did not lose a single set in the entire tournament and, in the process, extended his record grass court winning streak to 59 matches.^[3]

	Semifinals							Final
	1	Roger Federer	6	6
		Nicolas Kiefer	1	4
								1	Roger Federer	6	6
									Philipp Kohlschreiber	3	4
		Philipp Kohlschreiber	6	7
	2	James Blake	3	5

	First round							Second round							Quarterfinals							Semifinals
	1	R Federer	6	6
		M Berrer	4	2				1	R Federer	7	6
	Q	S Lipsky	6	3	2			Q	J Vacek	5	3
	Q	J Vacek	3	6	6										1	R Federer	6	6
		R Schüttler	64	4											5	M Baghdatis	4	4
		F Santoro	77	6					F Santoro	4	3
	Q	J Hernych	4	5				5	M Baghdatis	6	6
	5	M Baghdatis	6	7																		1	R Federer	6	6
	4	M Youzhny	6	6																			N Kiefer	1	4
		D Tursunov	3	1				4	M Youzhny	2	7	3
		R Haase	6	3	2				N Kiefer	6	5	6
		N Kiefer	4	6	6											N Kiefer	4
		O Rochus	1	4												M Llodra	0r
		S Darcis	6	6					S Darcis	66	63
		M Llodra	66	77	7				M Llodra	78	77
	8	I Ljubičić	78	65	5

	First round							Second round							Quarterfinals							Semifinals
	6	R Štěpánek	77	63	4
		T Haas	60	77	6				T Haas	5	7	65
		J Benneteau	4	1					P Kohlschreiber	7	5	77
		P Kohlschreiber	6	6												P Kohlschreiber	6	77
		R Söderling	6	4	6											R Söderling	4	64
	WC	P Petzschner	4	6	4				R Söderling	6	7
		T Johansson	3	5				3	T Berdych	2	5
	3	T Berdych	6	7																			P Kohlschreiber	6	7
	7	J Nieminen	6	4	2																	2	J Blake	3	5
		M Zverev	2	6	6				M Zverev	77	65	1
	WC	A Beck	64	77	6			WC	A Beck	65	77	6
		M Gicquel	77	64	3										WC	A Beck	64	65
		D Gremelmayr	4	2											2	J Blake	77	77
	WC	B Becker	6	6				WC	B Becker	6	5	3
	Q	B Phau	4	1				2	J Blake	4	7	6
	2	J Blake	6	6

• Singles draw
• Qualifying draw