List of number-one singles of 2003 (Ireland)
This list of number-one hits in Ireland in 2003. It was the year of each 19 number-one singles and albums.
- Eminem - Lose Yourself 5 weeks (5 December 2002 - 8 January 2003)
- 3 weeks ( 9 January to 29 January )
- 4 weeks ( 30 January to 26 February )
- 4 weeks ( February 27-March 26 )
- 3 weeks ( April 3 to April 23 )
- 5 weeks ( May 1-June 4 )
- 3 weeks ( June 5-June 25 )
- 2 weeks ( 26 June-9 July )
- 4 weeks ( 10 July to 6 August )
- 2 weeks ( August 7 to August 20 )
- 2 weeks ( August 21-September 3 )
- 9 weeks ( September 4 to November 5 )
- 3 weeks ( November 20 to December 10 )
- 6 weeks (December 18, 2003 - January 28, 2004 )
- Avril Lavigne - Let Go 1 week ( January 2 to January 8 in total 3 weeks)
- 2 weeks ( 16 January to 29 January a total of 3 weeks)
- 2 weeks ( 30 January to 12 February )
- 5 weeks ( 20 February to 31 March, a total of 10 weeks, see 2004)
- 4 weeks ( April 8 to May 5, a total of 10 weeks)
- 3 weeks ( May 6 to May 26 )
- 2 weeks ( May 27 to June 9 )
- 6 weeks ( July 8 to August 18, a total of 7 weeks)
- 3 weeks ( August 19 to September 8 )
- 3 weeks ( September 16-October 6 )
- 4 weeks ( October 7 to November 3, a total of 10 weeks)
- 4 weeks ( 4 November to 1 December )
- 2 weeks ( December 2 to December 15 )
- 6 weeks (23 December 2003 - 4 February 2004 a total of 10 weeks)