Singles
1999 Copenhagen Open
Final
Champion	Magnus Gustafsson[1]
Runner-up	Fabrice Santoro
Score	6–4, 6–1
Details
Draw	32
Seeds	8
Events
Singles Doubles
← 1998 · Copenhagen Open · 2000 →

The 1999 Croatian Indoors was a men's tennis tournament played on indoor carpet courts in Copenhagen, Denmark, that was part of the International Series of the 1999 ATP Tour. It was the twelfth edition of the tournament and was held from 2 February until 9 February 1998.

Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.

	Semifinals							Final[1]
		Sébastien Grosjean	6	2	0
	4	Fabrice Santoro	1	6	6
								4	Fabrice Santoro	4	1
								3	Magnus Gustafsson	6	6
	3	Magnus Gustafsson	6	6
	2	Byron Black	3	1

	First round							Second round							Quarterfinals							Semifinals
	1	M Rosset	2	6	6
		G Cañas	6	3	3			1	M Rosset	66	4
		D Nestor	6	6					D Nestor	7	6
		A Voinea	3	2												D Nestor	6	5	4
		S Grosjean	7	4	6											S Grosjean	4	7	6
		M-K Goellner	65	6	3				S Grosjean	6	7
		F Fetterlein	6	6					F Fetterlein	2	5
	7	D Prinosil	1	4																			S Grosjean	6	2	0
	4	F Santoro	6	6																		4	F Santoro	1	6	6
		T Larsen	3	0				4	F Santoro	6	6
		S Koubek	7	6					S Koubek	1	2
		A Clément	5	2											4	F Santoro	6	2
		R Schüttler	4	6	6											R Schüttler	3	0r
		L Tieleman	6	4	2				R Schüttler	6	7
		B Karbacher	6	6					B Karbacher	3	64
		J Krošlák	3	4

	First round							Second round							Quarterfinals							Semifinals
	6	D Sanguinetti	6	66	6
		J Landsberg	2	7	1			6	D Sanguinetti	61	3
		W Black	5	6	6				W Black	7	6
		T Ketola	7	3	0											W Black	4	6	2
		N Godwin	6	6											3	M Gustafsson	6	4	6
		P Wessels	2	3					N Godwin	3	7	5
	3	M Gustafsson	7	7				3	M Gustafsson	6	65	7
		K Carlsen	5	5																		3	M Gustafsson	6	6
	8	G Pozzi	4	7	6																	2	B Black	3	1
		M Tillström	6	5	2			8	G Pozzi	5	6	63
		M Mirnyi	7	7					M Mirnyi	7	4	7
		M Kohlmann	65	6												M Mirnyi	7	3	3
		N Kulti	6	6											2	B Black	65	6	6
		A Vinciguerra	1	3					N Kulti	65	6	3
	2	B Black	6	6				2	B Black	7	3	6
		K Pless	2	3

[* https://www.atptour.com/en/scores/archive/copenhagen/481/1999/draws?matchtype=singles Main draw] [* https://web.archive.org/web/20100202175124/http://www.stevegtennis.com/results/1999/q-copenhagen.txt Qualfying draw]