Men's singles
2021 Nottingham Open
Final
Champion	Frances Tiafoe
Runner-up	Denis Kudla
Score	6–1, 6–3
Events
Singles men women Doubles men women
← 2019 · Nottingham Open · 2022 →

Dan Evans was the defending champion^[1] but lost in the quarterfinals to Denis Kudla.

Frances Tiafoe won the title after defeating Kudla 6–1, 6–3 in the final.

	Semifinals							Final
	6	Denis Kudla	6	1	78
	8	Kamil Majchrzak	4	6	66
								6	Denis Kudla	1	3
								2	Frances Tiafoe	6	6
	Q	Marius Copil	3	2
	2	Frances Tiafoe	6	6

	First round							Second round							Quarterfinals							Semifinals
	1/WC	D Evans	4	77	77
		T Kokkinakis	6	61	65			1/WC	D Evans	78	77
	Q	M Ebden	6	6				Q	M Ebden	66	64
	WC	R Peniston	4	4											1/WC	D Evans	4	6	4
		A Bolt	5	6	3										6	D Kudla	6	1	6
		L Broady	7	3	6				L Broady	6	3	62
		T Macháč	3	6	4			6	D Kudla	3	6	77
	6	D Kudla	6	4	6																	6	D Kudla	6	1	78
	3	A Seppi	77	6																		8	K Majchrzak	4	6	66
		Zh Zhang	64	2				3	A Seppi	6	64	6
		T Fabbiano	65	63					A Hoang	4	77	2
		A Hoang	77	77											3	A Seppi	6	2	3
		M Polmans	610	6	3										8	K Majchrzak	4	6	6
	Q	A Vukic	712	4	6			Q	A Vukic	7	610	4
		P Gunneswaran	0	0r				8	K Majchrzak	5	712	6
	8	K Majchrzak	6	0

	First round							Second round							Quarterfinals							Semifinals
	7	D Džumhur	4	6	1
	Q	M Copil	6	4	6			Q	M Copil	6	6
	Q	B Gojo	3	712	66				S Ofner	4	4
		S Ofner	6	610	78										Q	M Copil	77	711
		M Cressy	4	77	3										4	K Anderson	64	69
		L Rosol	6	65	6				L Rosol	3	4
	WC	J Clarke	3	60				4	K Anderson	6	6
	4	K Anderson	6	77																		Q	M Copil	3	2
	5	M McDonald	3	5																		2	F Tiafoe	6	6
		E Donskoy	6	7					E Donskoy	77	77
		B Nakashima	6	6					B Nakashima	63	62
		M Vilella Martínez	3	2												E Donskoy	64	6	3
		F Gaio	2	3											2	F Tiafoe	77	2	6
		I Marchenko	6	6					I Marchenko	5	65
		M-A Hüsler	3	4				2	F Tiafoe	7	77
	2	F Tiafoe	6	6

• Main draw
• Qualifying draw