List of number-one singles of 1999 (Ireland)

The following is a list of the IRMA's number-one singles of 1999. The dates shown are Sundays.

Issue Date	Song	Artist	Ref.
3 January	"Chocolate Salty Balls"	Chef
10 January
17 January
24 January
31 January	"Pretty Fly (For a White Guy)"	The Offspring
7 February
14 February
21 February	"...Baby One More Time"	Britney Spears
28 February
7 March
14 March
21 March
28 March
4 April	"Swear It Again"	Westlife
11 April
18 April
25 April
2 May
9 May	"No Scrubs"	TLC
16 May
23 May	"Candle for Kosovo"	Rain / Various Artists
30 May
6 June	"Everybody's Free (To Wear Sunscreen)"	Baz Luhrmann
13 June
20 June	"That Don't Impress Me Much"	Shania Twain
27 June	"9pm (Till I Come)"	ATB
4 July
11 July
18 July
25 July	"Livin' La Vida Loca"	Ricky Martin
1 August	"When You Say Nothing At All"	Ronan Keating
8 August
15 August	"If I Let You Go"	Westlife
22 August
29 August	"Mambo No. 5"	Lou Bega
5 September
12 September
19 September	"Blue (Da Ba Dee)"	Eiffel 65
26 September
3 October
10 October
17 October
24 October	"Flying Without Wings"	Westlife
31 October
7 November
14 November
21 November	"32 Counties"	Dustin
28 November
5 December	"Everyday I Love You"	Boyzone
12 December	"I Try"	Macy Gray
19 December	"I Have a Dream"/"Seasons In The Sun"	Westlife
26 December

See also

• 1999 in music
• List of artists who reached number one in Ireland