Singles
2013 Košice Open
Final
Champion	Mikhail Kukushkin
Runner-up	Damir Džumhur
Score	6–4, 1–6, 6–2
Events
Singles Doubles
← 2012 · Košice Open · 2014 →

Aljaž Bedene was the defending champion but chose to compete in the 2013 Aegon Championships instead.
Mikhail Kukushkin won the title defeating Damir Džumhur in the final, 6–4, 1–6, 6–2.

	Semifinals							Final
		Radu Albot	6	2	4
	Q	Damir Džumhur	1	6	6
								Q	Damir Džumhur	4	6	2
									Mikhail Kukushkin	6	1	6
		Mikhail Kukushkin	6	2
		André Ghem	2	1r

	First round							Second round							Quarterfinals							Semifinals
	1	J Hájek	2	4
		H Laaksonen	6	6					H Laaksonen	2	3
		R Albot	6	6					R Albot	6	6
	WC	Marco Daniš	2	1												R Albot	6	6
	Q	C Gómez-Herrera	7	6											6	A Martin	1	4
	Q	V Uzhylovskyi	5	0				Q	C Gómez-Herrera	77	2	4
		P Starace	2	0r				6	A Martin	64	6	6
	6	A Martin	6	3																			R Albot	6	2	4
	3	J Sousa	6	6																		Q	D Džumhur	1	6	6
		F de Paula	2	0				3	J Sousa	0	4
		T Sandgren	2	2				Q	D Džumhur	6	6
	Q	D Džumhur	6	6											Q	D Džumhur	6	6
		M Semjan	4	6	3											JC Campozano	4	1
		D Meffert	6	4	6				D Meffert	6	4
		JC Campozano	6	6					JC Campozano	4	6	6
	7	I Sergeyev	1	1

	First round							Second round							Quarterfinals							Semifinals
	8	A Veić	710	6
	WC	A Pavalásek	68	3				8	A Veić	2	6	6
		V Crivoi	5	4					G Melzer	6	3	1
		G Melzer	7	6											8	A Veić	2	4
		A Giannessi	4	4												M Kukushkin	6	6
		G Clezar	6	6					G Clezar	0	2
		M Kukushkin	3	6	77				M Kukushkin	6	6
	4	T Gabashvili	6	3	65																		M Kukushkin	6	2
	5	M Jaziri	1	0r																			A Ghem	2	1r
	WC	M Mečíř Jr.	6	3				WC	M Mečíř Jr.	6	6
		H Podlipnik Castillo	6	3	3				A Šetkić	4	4
		A Šetkić	4	6	6										WC	M Mečíř Jr.	2	6	5
	Q	M Neuchrist	6	6												A Ghem	6	3	7
	WC	D Djokovic	2	1				Q	M Neuchrist	5	1
		A Ghem	6	2	6				A Ghem	7	6
	2	A Ungur	1	6	1

• Main Draw
• Qualifying Draw