List of Dutch Top 40 number-one singles of 1998
These hits topped the Dutch Top 40 in 1998 (see 1998 in music).
| Issue Date | Artist | Song |
| 3 January | No Top 40 released | |
| 10 January | Run DMC vs. Jason Nevins | "It's like That" |
| 17 January | Run DMC vs. Jason Nevins | "It's like That" |
| 24 January | Run DMC vs. Jason Nevins | "It's like That" |
| 31 January | Janet | "Together Again" |
| 7 February | Janet | "Together Again" |
| 14 February | Janet | "Together Again" |
| 21 February | Céline Dion | "My Heart Will Go On" |
| 28 February | Céline Dion | "My Heart Will Go On" |
| 7 March | Céline Dion | "My Heart Will Go On" |
| 14 March | Céline Dion | "My Heart Will Go On" |
| 21 March | Céline Dion | "My Heart Will Go On" |
| 28 March | Céline Dion | "My Heart Will Go On" |
| 4 April | Céline Dion | "My Heart Will Go On" |
| 11 April | Céline Dion | "My Heart Will Go On" |
| 18 April | Céline Dion | "My Heart Will Go On" |
| 25 April | Céline Dion | "My Heart Will Go On" |
| 2 May | K-Ci & JoJo | "All My Life" |
| 9 May | K-Ci & JoJo | "All My Life" |
| 16 May | K-Ci & JoJo | "All My Life" |
| 23 May | K-Ci & JoJo | "All My Life" |
| 30 May | The Soca Boys feat. Van B. King | "Follow the Leader" |
| 6 June | The Soca Boys feat. Van B. King | "Follow the Leader" |
| 13 June | The Soca Boys feat. Van B. King | "Follow the Leader" |
| 20 June | Pras feat. ODB & Mýa | "Ghetto Supastar (That Is What You Are)" |
| 27 June | Pras feat. ODB & Mýa | "Ghetto Supastar (That Is What You Are)" |
| 4 July | Pras feat. ODB & Mýa | "Ghetto Supastar (That Is What You Are)" |
| 11 July | Brandy & Monica | "The Boy Is Mine" |
| 18 July | Brandy & Monica | "The Boy Is Mine" |
| 25 July | Brandy & Monica | "The Boy Is Mine" |
| 1 August | Marco Borsato | "De bestemming" |
| 8 August | Marco Borsato | "De bestemming" |
| 15 August | Marco Borsato | "De bestemming" |
| 22 August | Des'ree | "Life" |
| 29 August | Des'ree | "Life" |
| 5 September | Des'ree | "Life" |
| 12 September | Des'ree | "Life" |
| 19 September | Des'ree | "Life" |
| 26 September | Faithless | "God Is a DJ" |
| 3 October | Boyzone | "No Matter What" |
| 10 October | Boyzone | "No Matter What" |
| 17 October | Boyzone | "No Matter What" |
| 24 October | Boyzone | "No Matter What" |
| 31 October | Boyzone | "No Matter What" |
| 7 November | Boyzone | "No Matter What" |
| 14 November | Boyzone | "No Matter What" |
| 21 November | Vengaboys | "Boom Boom Boom Boom" |
| 28 November | Vengaboys | "Boom Boom Boom Boom" |
| 5 December | Vengaboys | "Boom Boom Boom Boom" |
| 12 December | Vengaboys | "Boom Boom Boom Boom" |
| 19 December | Emilia | "Big Big World" |
| 26 December | Emilia | "Big Big World" |