This is a list of the weekly Canadian RPM magazine number one Top Singles chart of 1970.
| Volume:Issue | Issue Date(s) | Song | Artist |
| 12:20 | 3 January | "Raindrops Keep Fallin' on My Head" | B. J. Thomas |
| 12:21 | 10 January | ||
| 12:22 | 17 January | ||
| 12:23 | 24 January | "Jingle Jangle" | The Archies |
| 12:24 | 31 January | "Venus" | Shocking Blue |
| 12:25 | 7 February | ||
| 12:26 | 14 February | "Without Love" | Tom Jones |
| 13:1 | 21 February | "Hey There Lonely Girl" | Eddie Holman |
| 13:2 | 28 February | "No Time" | Guess Who |
| 13:3 | 7 March | ||
| 13:4 | 14 March | "Bridge over Troubled Water" | Simon & Garfunkel |
| 13:5 | 21 March | ||
| 13:6 | 28 March | ||
| 13:7 | 4 April | ||
| 13:8 | 11 April | "Let It Be" | The Beatles |
| 13:9 | 18 April | ||
| 13:10 | 25 April | ||
| 13:11 | 2 May | "Spirit In the Sky" | Norman Greenbaum |
| 13:12 | 9 May | "American Woman" | Guess Who |
| 13:13 | 16 May | ||
| 13:14 | 23 May | ||
| 13:15 | 30 May | "Up Around the Bend" | Creedence Clearwater Revival |
| 13:16 | 6 June | ||
| 13:17 | 13 June | "Everything Is Beautiful" | Ray Stevens |
| 13:18 | 20 June | "The Long and Winding Road" | The Beatles |
| 13:19 | 27 June | ||
| 13:20 | 4 July | "Get Ready" | Rare Earth |
| 13:21 | 11 July | "Lay Down" | Melanie feat. the Edwin Hawkins Singers |
| 13:22 | 18 July | ||
| 13:23 | 25 July | "A Song of Joy" | Miguel Ríos |
| 13:24 | 1 August | ||
| 13:25 | 8 August | "(They Long to Be) Close to You" | The Carpenters |
| 13:26 | 15 August | ||
| 14:1 | 22 August | "As the Years Go By" | Mashmakhan |
| 14:2 | 29 August | ||
| 14:3 | 5 September | "In the Summertime" | Mungo Jerry |
| 14:4 | 12 September | ||
| 14:5 | 19 September | "War" | Edwin Starr |
| 14:6 | 26 September | "Lookin' Out My Back Door" | Creedence Clearwater Revival |
| 14:7 | 3 October | ||
| 14:8 | 10 October | ||
| 14:9 | 17 October | "Cracklin' Rosie" | Neil Diamond |
| 14:10 | 24 October | ||
| 14:11 | 31 October | "Green-Eyed Lady" | Sugar Loaf |
| 14:12 | 7 November | ||
| 14:13 | 14 November | "We've Only Just Begun" | The Carpenters |
| 14:14 | 21 November | "I Think I Love You" | The Partridge Family |
| 14:15 | 28 November | ||
| 14:16 | 5 December | ||
| 14:17 | 12 December | ||
| 14:18 | 19 December | "Isn't It a Pity" | George Harrison |
| 14:19 | 26 December |