This is a list of the number-one hits of 2004 on FIMI's Italian Singles and Albums Charts.
| Issue date | Song | Artist | Album | Artist |
|---|---|---|---|---|
| 2 January | "Obsesión" | Aventura | Giro d'Italia | Ligabue |
| 9 January | ||||
| 16 January | "Shut Up" | The Black Eyed Peas | 111 Centoundici | Tiziano Ferro |
| 23 January | "Dragostea din tei" | Haiducii | Concerti | Fiorella Mannoia |
| 30 January | 111 Centoundici | Tiziano Ferro | ||
| 6 February | Feels Like Home | Norah Jones | ||
| 13 February | ||||
| 20 February | Ritratti | Francesco Guccini | ||
| 27 February | "Amazing" | George Michael | ||
| 5 March | "Dragostea din tei" | Haiducii | The Platinum Collection | Mina |
| 12 March | "Left Outside Alone" | Anastacia | Patience | George Michael |
| 19 March | Convivendo parte 1 | Biagio Antonacci | ||
| 26 March | ||||
| 2 April | Buoni o cattivi | Vasco Rossi | ||
| 9 April | ||||
| 16 April[1] | ||||
| 23 April | "A chi mi dice" | Blue | Passi d'autore | Pino Daniele |
| 30 April | Buoni o cattivi | Vasco Rossi | ||
| 7 May | Passi d'autore | Pino Daniele | ||
| 14 May | Zu & Co. | Zucchero | ||
| 21 May | Ascolta | Pooh | ||
| 28 May | Il mondo insieme a te | Max Pezzali | ||
| 4 June | Zu & Co. | Zucchero | ||
| 11 June | ||||
| 18 June | "Fuck It (I Don't Want You Back)" | Eamon | Buoni o cattivi | Vasco Rossi |
| 25 June | ||||
| 2 July | ||||
| 9 July | ||||
| 16 July | ||||
| 23 July | ||||
| 30 July | ||||
| 6 August | ||||
| 13 August | ||||
| 20 August | ||||
| 27 August | ||||
| 3 September | "Universal Prayer" | Tiziano Ferro and Jamelia | Genius Loves Company | Ray Charles |
| 10 September | "The Reason" | Hoobastank | ||
| 17 September | There Will Be a Light | Ben Harper and The Blind Boys of Alabama | ||
| 24 September | "Calma e sangue freddo" | Luca Dirisio | Genius Loves Company | Ray Charles |
| 1 October | "Resta in ascolto" | Laura Pausini | Dieci stratagemmi | Franco Battiato |
| 8 October | Around the Sun | R.E.M. | ||
| 15 October | Greatest Hits | Robbie Williams | ||
| 22 October | Resta in ascolto | Laura Pausini | ||
| 29 October | "My Prerogative" | Britney Spears | Greatest Hits | Robbie Williams |
| 5 November | "Vertigo" | U2 | Elegia | Paolo Conte |
| 12 November | Best of Blue | Blue | ||
| 19 November | How to Dismantle an Atomic Bomb | U2 | ||
| 26 November | ||||
| 3 December[2] | "Do They Know It's Christmas?" | Band Aid 20 | Best of Blue | Blue |
| 10 December | ||||
| 17 December | ||||
| 24 December | ||||
| 31 December |