List of Dutch Top 40 number-one singles of 1999

Issue Date	Artist	Song
2 January	Emilia	Big Big World
9 January	Emilia	Big Big World
16 January	Cher	Believe
23 January	The Offspring	Pretty Fly
30 January	The Offspring	Pretty Fly
6 February	The Offspring	Pretty Fly
13 February	2pac	Changes
20 February	2pac	Changes
27 February	2pac	Changes
6 March	Britney Spears	...Baby One More Time
13 March	Britney Spears	...Baby One More Time
20 March	DJ Jean	The Launch
27 March	DJ Jean	The Launch
3 April	Britney Spears	...Baby One More Time
10 April	Britney Spears	...Baby One More Time
17 April	Vengaboys	We're Going to Ibiza
24 April	Vengaboys	We're Going to Ibiza
1 May	Vengaboys	We're Going to Ibiza
8 May	Backstreet Boys	I Want It That Way
15 May	Backstreet Boys	I Want It That Way
22 May	Backstreet Boys	I Want It That Way
29 May	Backstreet Boys	I Want It That Way
5 June	Toy-Box	Best Friend
12 June	Toy-Box	Best Friend
19 June	Toy-Box	Best Friend
26 June	Toy-Box	Best Friend
3 July	Britney Spears	Sometimes
10 July	Britney Spears	Sometimes
17 July	Jennifer Lopez	If You Had My Love
24 July	Lou Bega	Mambo No. 5
31 July	Lou Bega	Mambo No. 5
7 August	Lou Bega	Mambo No. 5
14 August	Lou Bega	Mambo No. 5
21 August	Eiffel 65	Blue
28 August	Eiffel 65	Blue
4 September	Eiffel 65	Blue
11 September	Eiffel 65	Blue
18 September	Eiffel 65	Blue
25 September	City To City	The Road Ahead
2 October	City To City	The Road Ahead
9 October	City To City	The Road Ahead
16 October	City To City	The Road Ahead
23 October	R. Kelly	If I Could Turn Back the Hands of Time
30 October	R. Kelly	If I Could Turn Back the Hands of Time
6 November	R. Kelly	If I Could Turn Back the Hands of Time
13 November	R. Kelly	If I Could Turn Back the Hands of Time
20 November	R. Kelly	If I Could Turn Back the Hands of Time
27 November	R. Kelly	If I Could Turn Back the Hands of Time
4 December	R. Kelly	If I Could Turn Back the Hands of Time
11 December	R. Kelly	If I Could Turn Back the Hands of Time
18 December	Def Rhymz	Doekoe
25 December	Marco Borsato	Binnen