Women's singles
2021 Hamburg European Open
Champion	Elena-Gabriela Ruse
Runner-up	Andrea Petkovic
Score	7–6(8–6), 6–4

Kim Clijsters was the defending champion, having won the previous edition in 2002,^[1] but chose not to participate.

Elena-Gabriela Ruse won her maiden WTA Tour singles title as a qualifier, defeating Andrea Petkovic in the final, 7–6^(8–6), 6–4.

This tournament marked Dayana Yastremska's return to professional tennis, after her suspension for testing positive for a prohibited substance was lifted by the ITF.

Seeds

The top four seeds received a bye into the second round.

Draw

Finals

	Semifinals							Final
	1	Dayana Yastremska	6	1	4
	Q	Elena-Gabriela Ruse	2	6	6
								Q	Elena-Gabriela Ruse	78	6
									Andrea Petkovic	66	4
	WC	Jule Niemeier	64	6	5
		Andrea Petkovic	77	4	7

Top half

	First round							Second round							Quarterfinals							Semifinals
								1	D Yastremska	77	6
		M Fręch	6	6					M Fręch	65	1
	Q	M Melnikova	4	4											1	D Yastremska	77	6
		J Paolini	5	5												S Errani	64	4
		A Konjuh	7	7					A Konjuh	65	3
		S Errani	7	6					S Errani	77	6
	5	F Ferro	5	3																		1	D Yastremska	6	1	4
																						Q	E-G Ruse	2	6	6
								4	D Collins	1	6	6
	LL	K Kučová	6	77				LL	K Kučová	6	2	3
	WC	M Barthel	3	64											4	D Collins	4	6	5
	Q	A Zaja	0	6	7										Q	E-G Ruse	6	1	7
		V Tomova	6	3	5			Q	A Zaja	2	2
	Q	E-G Ruse	7	77				Q	E-G Ruse	6	6
	6	J Teichmann	5	61

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	8	C Garcia	4	2
	WC	J Niemeier	6	6				WC	J Niemeier	6	65	6
	Q	M Minella	5	3				WC	T Korpatsch	2	77	3
	WC	T Korpatsch	7	6											WC	J Niemeier	6	6
		I Bara	2	65											3	T Zidanšek	2	4
		Kr Plíšková	6	77					Kr Plíšková	3	6	3
								3	T Zidanšek	6	3	6
																						WC	J Niemeier	64	6	5
	7	B Pera	6	6																			A Petkovic	77	4	7
		K Kawa	1	2				7	B Pera	6	3	4
		A Sharma	6	2	4				Y Bonaventure	3	6	6
		Y Bonaventure	1	6	6											Y Bonaventure	2	5
		A-L Friedsam	4	5												A Petkovic	6	7
		A Petkovic	6	7					A Petkovic	6	1	6
								2	Y Putintseva	2	6	4

Qualifying

Draw

First qualifier

	First round							Qualifying competition
	Alt	Jasmin Jebawy	2	3
		Anna Zaja	6	6
									Anna Zaja	7	3	6
								6	Katharina Gerlach	5	6	4
		Katarzyna Piter	2	5
	6	Katharina Gerlach	6	7

Second qualifier

	First round							Qualifying competition
	2	Kristína Kučová	6	4	6
		Stephanie Wagner	1	6	4
								2	Kristína Kučová	3	3
								7	Mandy Minella	6	6
	WC	Eva Lys	5	4
	7	Mandy Minella	7	6

Third qualifier

	First round							Qualifying competition
	3	Marina Melnikova	6	4
		Noma Noha Akugue	1	1r
								3	Marina Melnikova	6	6
								WC	Katharina Hobgarski	4	0
	WC	Katharina Hobgarski	6	6
	8	Paula Ormaechea	1	3

Fourth qualifier

	First round							Qualifying competition
	4	Elena-Gabriela Ruse	6	6
		Liang En-shuo	2	1
								4	Elena-Gabriela Ruse	6	6
								5	Isabella Shinikova	3	3
		Sina Herrmann	4	2
	5	Isabella Shinikova	6	6

References

External links

• Main draw
• Qualifying draw