These are the Canadian number-one albums of 1978 as compiled by RPM.[1]
| Issue date | Album | Artist |
|---|---|---|
| January 7 | (no publication) | ( - ) |
| January 14 | You Light Up My Life | Debby Boone |
| January 21 | ||
| January 28 | Rumours | Fleetwood Mac |
| February 4 | Foot Loose & Fancy Free | Rod Stewart |
| February 11 | ||
| February 18 | Saturday Night Fever | Soundtrack |
| February 25 | ||
| March 4 | ||
| March 11 | ||
| March 18 | ||
| March 25 | ||
| April 1 | ||
| April 8 | ||
| April 15 | ||
| April 22 | ||
| April 29 | ||
| May 6 | ||
| May 13 | ||
| May 20 | ||
| May 27 | ||
| June 3 | ||
| June 10 | ||
| June 17 | ||
| June 24 | ||
| July 1 | ||
| July 8 | ||
| July 15 | ||
| July 22 | City to City | Gerry Rafferty |
| July 29 | Shadow Dancing | Andy Gibb |
| August 5 | Some Girls | The Rolling Stones |
| August 12 | Grease | Soundtrack |
| August 19 | ||
| August 26 | ||
| September 2 | ||
| September 9 | ||
| September 16 | ||
| September 23 | ||
| September 30 | (not available) | (not available) |
| October 7 | Don't Look Back | Boston |
| October 14 | ||
| October 21 | ||
| October 28 | Let's Keep It That Way | Anne Murray |
| November 4 | (no publication) | ( - ) |
| November 11 | ||
| November 18 | Let's Keep It That Way | Anne Murray |
| November 25 | ||
| December 2 | ||
| December 9 | Elvis: A Canadian Tribute | Elvis Presley |
| December 16 | 52nd Street | Billy Joel |
| December 23 | ||
| December 30 |