This is a list of the Spanish PROMUSICAE Top 20 Singles number-ones of 1998. [1]
| Issue date | Song | Artist |
|---|---|---|
| 3 January | "Candle in the Wind 1997" | Elton John |
| 10 January | ||
| 17 January | ||
| 24 January | "Torn" | Natalie Imbruglia |
| 31 January | ||
| 7 February | ||
| 14 February | "All I Have to Give" | Backstreet Boys |
| 21 February | "Torn" | Natalie Imbruglia |
| 28 February | "Frozen" | Madonna |
| 7 March | ||
| 14 March | ||
| 21 March | "El Club de Los Humildes" | Mecano |
| 28 March | "Frozen" | Madonna |
| 4 April | "El Club de Los Humildes" | Mecano |
| 11 April | "La Copa de la Vida" | Ricky Martin |
| 18 April | ||
| 25 April | "My Heart Will Go On" | Celine Dion |
| 2 May | ||
| 9 May | "Ray of Light" | Madonna |
| 16 May | ||
| 23 May | ||
| 30 May | "Corazón prohibido" | Gloria Estefan |
| 6 June | ||
| 13 June | "Corazón Partío" | Alejandro Sanz |
| 20 June | ||
| 27 June | ||
| 4 July | "Happy World" | Blue 4 You |
| 11 July | ||
| 18 July | ||
| 25 July | ||
| 1 August | ||
| 8 August | "Oye!" | Gloria Estefan |
| 15 August | ||
| 22 August | ||
| 29 August | ||
| 5 September | "Music Sounds Better with You" | Stardust |
| 12 September | "Drowned World/Substitute for Love" | Madonna |
| 19 September | "Only When I Lose Myself" | Depeche Mode |
| 26 September | ||
| 3 October | ||
| 10 October | ||
| 17 October | "Contigo" | Rosana |
| 24 October | ||
| 31 October | "Outside" | George Michael |
| 7 November | ||
| 14 November | ||
| 21 November | "Believe" | Cher |
| 28 November | ||
| 5 December | ||
| 12 December | ||
| 19 December | ||
| 26 December |