This is a list of the weekly Canadian RPM magazine number one Top Singles chart of 1975.
| Volume:Issue | Issue Date(s) | Song | Artist |
| 22:19 | 4 January | "Kung Fu Fighting" | Carl Douglas |
| 22:20 | 11 January | "Lucy in the Sky with Diamonds" | Elton John |
| 22:21 | 18 January | ||
| 22:22 | 25 January | ||
| 22:23 | 1 February | ||
| 22:24 | 8 February | "Please Mr. Postman" | The Carpenters |
| 22:25 | 15 February | "Doctor's Orders" | Carol Douglas |
| 22:26 | 22 February | "Mandy" | Barry Manilow |
| 23:1 | 1 March | "Best of My Love" | Eagles |
| 23:2 | 8 March | ||
| 23:3 | 15 March | "Have You Never Been Mellow" | Olivia Newton-John |
| 23:4 | 22 March | ||
| 23:5 | 29 March | "Lady Marmalade" | Labelle |
| 23:6 | 5 April | "No No Song" | Ringo Starr |
| 23:7 | 12 April | ||
| 23:8 | 19 April | "Philadelphia Freedom" | Elton John |
| 23:9 | 26 April | ||
| 23:10 | 3 May | "I Don't Like to Sleep Alone" | Paul Anka |
| 23:11 | 10 May | "It's a Miracle" | Barry Manilow |
| 23:12 | 17 May | ||
| 23:13 | 24 May | "Thank God I'm a Country Boy" | John Denver |
| 23:14 | 31 May | ||
| 23:15 | 7 June | "Hey You" | Bachman-Turner Overdrive |
| 23:16 | 14 June | ||
| 23:17 | 21 June | "Love Will Keep Us Together" | Captain & Tennille |
| 23:18 | 28 June | "Wildfire" | Michael Murphey |
| 23:19 | 5 July | "Only Women Bleed" | Alice Cooper |
| 23:20 | 12 July | "Listen to What the Man Said" | Wings |
| 23:21 | 19 July | "Magic" | Pilot |
| 23:22 | 26 July | "The Hustle" | Van McCoy |
| 22:23 | 2 August | ||
| 23:24 | 9 August | "Please Mr. Please" | Olivia Newton-John |
| 23:25 | 16 August | "Jive Talkin'" | Bee Gees |
| 23:26 | 23 August | "I'm Not in Love" | 10cc |
| 24:1 | 30 August | ||
| 24:2 | 6 September | "How Sweet It Is (To Be Loved by You)" | James Taylor |
| 24:3 | 13 September | "I Believe (There's Nothing Stronger Than Our Love)" | Paul Anka |
| 24:4 | 20 September | "Rhinestone Cowboy" | Glen Campbell |
| 24:5 | 27 September | "Get Down Tonight" | KC and the Sunshine Band |
| 24:6 | 4 October | "Ballroom Blitz" | Sweet |
| 24:7 | 13 October | "Third Rate Romance" | Amazing Rhythm Aces |
| 24:8 | 18 October | "I'm Sorry" | John Denver |
| 24:9 | 25 October | "Black Superman" | Johnny Wakelin |
| 24:10-12 | 13 December | "That's the Way (I Like It)" | KC and the Sunshine Band |
| 24:13 | 20 December | ||
| 24:14 | 27 December |