# List of Canadian Hot 100 number-one singles of 2021

This is a list of the Canadian Hot 100 number-one singles of 2021. The Canadian Hot 100 is a chart that ranks the best-performing singles of Canada. Its data, published by Billboard magazine and compiled by MRC Data, is based collectively on each single's weekly physical and digital sales, as well as airplay and streaming.

## Chart history

Key :
| † | Indicates best-performing single of 2021 |
| No. | Issue date | Song | Artist(s) |
| re | January 2 | "All I Want for Christmas Is You" | Mariah Carey |
| re | January 9 | "Mood" | 24kGoldn featuring Iann Dior |
| re | January 16 | "Mood" | 24kGoldn featuring Iann Dior |
| 164 | January 23 | "Drivers License" | Olivia Rodrigo |
| 164 | January 30 | "Drivers License" | Olivia Rodrigo |
| 164 | February 6 | "Drivers License" | Olivia Rodrigo |
| 164 | February 13 | "Drivers License" | Olivia Rodrigo |
| 164 | February 20 | "Drivers License" | Olivia Rodrigo |
| 165 | February 27 | "Calling My Phone" | Lil Tjay featuring 6lack |
| re | March 6 | "Drivers License" | Olivia Rodrigo |
| re | March 13 | "Drivers License" | Olivia Rodrigo |
| 166 | March 20 | "What's Next" | Drake |
| 167 | March 27 | "Levitating" † | Dua Lipa featuring DaBaby |
| 168 | April 3 | "Peaches" | Justin Bieber featuring Daniel Caesar and Giveon |
| 168 | April 10 | "Peaches" | Justin Bieber featuring Daniel Caesar and Giveon |
| 169 | April 17 | "Montero (Call Me by Your Name)" | Lil Nas X |
| 170 | April 24 | "Rapstar" | Polo G |
| re | May 1 | "Peaches" | Justin Bieber featuring Daniel Caesar and Giveon |
| 171 | May 8 | "Save Your Tears" | The Weeknd and Ariana Grande |
| re | May 15 | "Levitating" † | Dua Lipa featuring DaBaby |
| re | May 22 | "Levitating" † | Dua Lipa featuring DaBaby |
| 172 | May 29 | "Good 4 U" | Olivia Rodrigo |
| 172 | June 5 | "Good 4 U" | Olivia Rodrigo |
| 172 | June 12 | "Good 4 U" | Olivia Rodrigo |
| 172 | June 19 | "Good 4 U" | Olivia Rodrigo |
| 172 | June 26 | "Good 4 U" | Olivia Rodrigo |
| 172 | July 3 | "Good 4 U" | Olivia Rodrigo |
| 173 | July 10 | "Bad Habits" | Ed Sheeran |
| 173 | July 17 | "Bad Habits" | Ed Sheeran |
| 174 | July 24 | "Stay" | The Kid Laroi and Justin Bieber |
| 174 | July 31 | "Stay" | The Kid Laroi and Justin Bieber |
| re | August 7 | "Bad Habits" | Ed Sheeran |
| re | August 14 | "Bad Habits" | Ed Sheeran |
| re | August 21 | "Stay" | The Kid Laroi and Justin Bieber |
| re | August 28 | "Stay" | The Kid Laroi and Justin Bieber |
| re | September 4 | "Stay" | The Kid Laroi and Justin Bieber |
| re | September 11 | "Stay" | The Kid Laroi and Justin Bieber |
| re | September 18 | "Stay" | The Kid Laroi and Justin Bieber |
| re | September 25 | "Stay" | The Kid Laroi and Justin Bieber |
| re | October 2 | "Stay" | The Kid Laroi and Justin Bieber |
| re | October 9 | "Stay" | The Kid Laroi and Justin Bieber |
| re | October 16 | "Stay" | The Kid Laroi and Justin Bieber |
| re | October 23 | "Stay" | The Kid Laroi and Justin Bieber |
| 175 | October 30 | "Easy on Me" | Adele |
| 175 | November 6 | "Easy on Me" | Adele |
| 175 | November 13 | "Easy on Me" | Adele |
| 175 | November 20 | "Easy on Me" | Adele |
| 176 | November 27 | "All Too Well (Taylor's Version)" | Taylor Swift |
| re | December 4 | "Easy on Me" | Adele |
| re | December 11 | "Easy on Me" | Adele |
| re | December 18 | "Easy on Me" | Adele |
| re | December 25 | "Easy on Me" | Adele |