This is a list of number one singles in Sweden in 2003 according to "Hitlistan" (The hit list) 1998–2007.
| Issue date | Song | Artist(s) |
|---|---|---|
| 2 January | "The Ketchup Song (Aserejé)" | Las Ketchup |
| 9 January | "Tu es foutu" | In-Grid |
| 16 January | ||
| 23 January | "Lose Yourself" | Eminem |
| 30 January | ||
| 6 February | ||
| 13 February | ||
| 20 February | ||
| 27 February | ||
| 6 March | ||
| 13 March | ||
| 20 March | "I Drove All Night" | Céline Dion |
| 27 March | "Give Me Your Love" | Fame |
| 3 April | ||
| 10 April | "Not A Sinner Nor A Saint" | Alcazar |
| 17 April | "Den andra kvinnan" | Glenmark / Eriksson / Strömstedt |
| 24 April | "Anyone of Us (Stupid Mistake)" | Gareth Gates |
| 1 May | "Give Me Your Love" | Fame |
| 8 May | "Alive" | Da Buzz |
| 15 May | ||
| 22 May | ||
| 29 May | ||
| 5 June | ||
| 12 June | "Without You" | Anders Johansson |
| 19 June | "Every Way That I Can" | Sertab Erener |
| 26 June | ||
| 4 July | ||
| 11 July | "Här kommer alla känslorna (på en och samma gång)" | Per Gessle |
| 18 July | ||
| 25 July | ||
| 1 August | ||
| 8 August | ||
| 15 August | ||
| 22 August | ||
| 29 August | ||
| 5 September | "Where Is The Love?" | The Black Eyed Peas |
| 12 September | "Aïcha" | Outlandish |
| 19 September | ||
| 26 September | "When We Were Winning" | Broder Daniel |
| 3 October | "Aïcha" | Outlandish |
| 10 October | ||
| 17 October | ||
| 24 October | "Om du stannar hos mig" | Nina & Kim |
| 31 October | "Vilse i skogen" | Markoolio |
| 7 November | ||
| 14 November | ||
| 21 November | ||
| 28 November | "Starkare" | Sara Löfgren |
| 5 December | "Vilse i skogen" | Markoolio |
| 12 December | "Starkare" | Sara Löfgren |
| 19 December | "Vilse i skogen" | Markoolio |
| 26 December |
|
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