Doubles
2018 Slovak Open
Champions	Denys Molchanov Igor Zelenay
Runners-up	Ramkumar Ramanathan Andrei Vasilevski
Score	6–2, 3–6, [11–9]

Ken and Neal Skupski were the defending champions but only Ken Skupski chose to defend his title, partnering Jonny O'Mara. Ken Skupski lost in the semifinals to Denys Molchanov and Igor Zelenay.

Molchanov and Zelenay won the title after defeating Ramkumar Ramanathan and Andrei Vasilevski 6–2, 3–6, [11–9] in the final.

Seeds

Draw

Key

• Q = Qualifier
• WC = Wild card
• LL = Lucky loser
• Alt = Alternate
• SE = Special exempt
• PR = Protected ranking
• ITF = ITF entry
• JE = Junior exempt
• w/o = Walkover
• r = Retired
• d = Defaulted
• SR = Special ranking

	First round							Quarterfinals							Semifinals							Final
	1	J O'Mara K Skupski	6	6
		G García López S Gutiérrez Ferrol	4	3				1	J O'Mara K Skupski	4	6	[10]
		M-A Hüsler S Robert	4	4					P Raja A Šančić	6	4	[6]
		P Raja A Šančić	6	6											1	J O'Mara K Skupski	4	5
	3	D Molchanov I Zelenay	77	6											3	D Molchanov I Zelenay	6	7
	WC	F Horanský A Molčan	65	4				3	D Molchanov I Zelenay	6	63	[10]
	WC	N Gombos L Klein	79	66	[13]			WC	N Gombos L Klein	2	77	[6]
		T Brkić A Pavić	67	78	[11]																	3	D Molchanov I Zelenay	6	3	[11]
		E Donskoy S Stakhovsky	6	4	[10]																		R Ramanathan A Vasilevski	2	6	[9]
		D Pel A Vavassori	3	6	[4]				E Donskoy S Stakhovsky	3	2
		D Bracciali A Mies	63	1				4	G Granollers D Marrero	6	6
	4	G Granollers D Marrero	77	6											4	G Granollers D Marrero	5	6	[6]
	WC	A Martin F Polášek	4	6	[10]											R Ramanathan A Vasilevski	7	4	[10]
		A Bury T-S Weissborn	6	3	[5]			WC	A Martin F Polášek	6	3	[8]
		R Ramanathan A Vasilevski	6	3	[10]				R Ramanathan A Vasilevski	4	6	[10]
	2	M Matkowski P Oswald	3	6	[6]

References

• Main Draw