These are the Canadian number-one albums of 1998. The charts were compiled and published by RPM every Monday.
| Issue date | Album | Artist |
|---|---|---|
| January 5 | Big Shiny Tunes 2 | Various Artists |
| January 12 | ||
| January 19 | ||
| January 26 | ||
| February 2 | Titanic: Music from the Motion Picture | James Horner |
| February 9 | ||
| February 16 | ||
| February 23 | ||
| March 2 | ||
| March 9 | ||
| March 16 | Ray of Light | Madonna |
| March 23 | ||
| March 30 | Titanic: Music from the Motion Picture | James Horner |
| April 6 | ||
| April 13 | ||
| April 20 | ||
| April 27 | ||
| May 4 | Hit Zone 4 | Various Artists |
| May 11 | ||
| May 18 | ||
| May 25 | Now! 3 | |
| June 1 | ||
| June 8 | ||
| June 15 | ||
| June 22 | ||
| June 29 | ||
| July 6 | ||
| July 13 | ||
| July 20 | ||
| July 27 | ||
| August 3 | Phantom Power | The Tragically Hip |
| August 10 | ||
| August 17 | Armageddon: The Album | Soundtrack |
| August 24 | ||
| August 31 | ||
| September 7 | Follow the Leader | Korn |
| September 14 | Armageddon: The Album | Soundtrack |
| September 21 | ||
| September 28 | S'il Suffisait d'Aimer | Céline Dion |
| October 5 | Mechanical Animals | Marilyn Manson |
| October 12 | ||
| October 19 | Dizzy Up the Girl | the Goo Goo Dolls |
| October 26 | ||
| November 2 | The Miseducation of Lauryn Hill | Lauryn Hill |
| November 9 | Supposed Former Infatuation Junkie | Alanis Morissette |
| November 16 | The Best of 1980-1990 | U2 |
| November 23 | Supposed Former Infatuation Junkie | Alanis Morissette |
| November 30 | Double Live | Garth Brooks |
| December 7 | These Are Special Times | Céline Dion |
| December 14 | Big Shiny Tunes 3 | Various Artists |
| December 21 | ||
| December 28 |