Doubles
1990 Czechoslovak Open
Final
Champions	Vojtěch Flégl Daniel Vacek
Runners-up	George Cosac Florin Segărceanu
Score	5–7, 6–4, 6–3
Details
Draw	16 (1Q)
Seeds	4
Events
Singles Doubles
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Jordi Arrese and Horst Skoff were the defending champions, but competed this year with different partners. Arrese teamed up with Stefano Pescosolido and lost in the quarterfinals to Tomáš Šmíd and Cyril Suk, while Skoff teamed up with Francisco Clavet and lost in the first round to Marcelo Filippini and Marián Vajda.

Vojtěch Flégl and Daniel Vacek won the title by defeating George Cosac and Florin Segărceanu 5–7, 6–4, 6–3 in the final.^[1][2]

	First round							Quarterfinals							Semifinals							Final
	1	T Šmíd C Suk	7	6
		B Stankovič R Vogel	6	4				1	T Šmíd C Suk	6	4	6
		J Arrese S Pescosolido	6	6					J Arrese S Pescosolido	4	6	4
		L Jönsson M Nilsson	3	4											1	T Šmíd C Suk	4	2
	4	F Clavet H Skoff	3	4												G Cosac F Segărceanu	6	6
		M Filippini M Vajda	6	6					M Filippini M Vajda	4	3
		G Cosac F Segărceanu	6	6					G Cosac F Segărceanu	6	6
	Q	F Davín S Hiršzon	4	2																			G Cosac F Segărceanu	7	4	3
		V Flégl D Vacek	6	6																			V Flégl D Vacek	5	6	6
		M Damm J Kodeš Jr.	3	2					V Flégl D Vacek	7	7
		T Benhabiles C Pioline	1	6	4			3	U Riglewski T Anzari	6	6
	3	U Riglewski T Anzari	6	4	6											V Flégl D Vacek	6	7
		N Kulti M Larsson	6	6												S Doseděl G Prpić	2	6
		R Azar M Nilsson	2	1					N Kulti M Larsson	7	6	1
		S Doseděl G Prpić	7	6					S Doseděl G Prpić	5	7	6
	2	H de la Peña A Mora	5	3

• Official results archive (ATP)
• Official results archive (ITF)