| Issue Date | Song | Artist(s) |
|---|---|---|
| January 4 | "Killer Queen" | Queen |
| January 11 | ||
| January 18 | ||
| January 24 | ||
| February 1 | "You Ain't Seen Nothing Yet" | Bachman–Turner Overdrive |
| February 8 | ||
| February 15 | "Love Hurts" ‡ | Nazareth |
| February 22 | ||
| March 1 | ||
| March 8 | ||
| March 15 | ||
| March 22 | ||
| March 29 | ||
| April 5 | ||
| April 12 | "You're the First, the Last, My Everything" | Barry White |
| April 19 | ||
| April 26 | ||
| May 3 | ||
| May 10 | "Philadelphia Freedom" | Elton John |
| May 17 | ||
| May 24 | ||
| May 31 | ||
| June 7 | "Fox on the Run" | Sweet |
| June 14 | ||
| June 21 | ||
| June 28 | ||
| July 5 | ||
| July 12 | "Paloma Blanca" | George Baker Selection |
| July 19 | ||
| July 26 | ||
| August 2 | ||
| August 9 | ||
| August 16 | ||
| August 23 | "Someone Saved My Life Tonight" | Elton John |
| August 30 | ||
| September 6 | ||
| September 13 | ||
| September 20 | ||
| September 27 | "SOS" | ABBA |
| October 4 | ||
| October 11 | ||
| October 18 | ||
| October 25 | ||
| November 1 | "Sailing" | Rod Stewart |
| November 8 | ||
| November 15 | ||
| November 22 | ||
| November 29 | "Bohemian Rhapsody" † | Queen |
| December 6 | ||
| December 13 | ||
| December 20 | ||
| December 27 |
