# List of number-one singles of 2021 (Finland)

This is the complete list of number-one singles in Finland in 2021 according to the Official Finnish Charts. The list on the left side of the box (Suomen virallinen singlelista, "the Official Finnish Singles Chart") represents physical and digital track sales as well as music streaming, and the one on the right side (Suomen virallinen radiosoittolista, "the Official Finnish Airplay Chart") represents airplay.

## Chart history

| Official Finnish Singles Chart | Official Finnish Singles Chart | Official Finnish Singles Chart | Official Finnish Singles Chart | Official Finnish Airplay Chart | Official Finnish Airplay Chart | Official Finnish Airplay Chart | Official Finnish Airplay Chart |
| Issue date | Song | Artist(s) | Reference(s) | Issue date | Song | Artist(s) | Reference(s) |
| Week 1 | "Treenaa" | Antti Tuisku | | Week 1 | "Frida" | Behm | |
| Week 2 | "Without You" | The Kid Laroi | | Week 2 | "Frida" | Behm | |
| Week 3 | "Drivers License" | Olivia Rodrigo | | Week 3 | "Frida" | Behm | |
| Week 4 | "Drivers License" | Olivia Rodrigo | | Week 4 | "Frida" | Behm | |
| Week 5 | "Drivers License" | Olivia Rodrigo | | Week 5 | "Syntisten pöytä" | Erika Vikman | |
| Week 6 | "Drivers License" | Olivia Rodrigo | | Week 6 | "Dinosauruksii" | Ellinoora | |
| Week 7 | "Me ei mennä rikki" | Gasellit (featuring Karri Koira) | | Week 7 | "Dinosauruksii" | Ellinoora | |
| Week 8 | "Dark Side" | Blind Channel | | Week 8 | "Dinosauruksii" | Ellinoora | |
| Week 9 | "Piilotan mun kyyneleet" | Haloo Helsinki! | | Week 9 | "Dinosauruksii" | Ellinoora | |
| Week 10 | "Piilotan mun kyyneleet" | Haloo Helsinki! | | Week 10 | "Dinosauruksii" | Ellinoora | |
| Week 11 | "Piilotan mun kyyneleet" | Haloo Helsinki! | | Week 11 | "Dinosauruksii" | Ellinoora | |
| Week 12 | "Piilotan mun kyyneleet" | Haloo Helsinki! | | Week 12 | "Dinosauruksii" | Ellinoora | |
| Week 13 | "Steppasin Partyy" | Yb026 | | Week 13 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 14 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 14 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 15 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 15 | "Dinosauruksii" | Ellinoora | |
| Week 16 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 16 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 17 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 17 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 18 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 18 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 19 | "Pettäjä" | Sanni | | Week 19 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 20 | "Montero (Call Me by Your Name)" | Lil Nas X | | Week 20 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 21 | "Dark Side" | Blind Channel | | Week 21 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 22 | "Zitti e buoni" | Måneskin | | Week 22 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 23 | "Zitti e buoni" | Måneskin | | Week 23 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 24 | "I Wanna Be Your Slave" | Måneskin | | Week 24 | "Piilotan mun kyyneleet" | Haloo Helsinki! | |
| Week 25 | "I Wanna Be Your Slave" | Måneskin | | Week 25 | "Aavikko" | Lauri Tähkä | |
| Week 26 | "Vauhti kiihtyy" | Portion Boys (featuring Matti ja Teppo) | | Week 26 | "Aavikko" | Lauri Tähkä | |
| Week 27 | "I Wanna Be Your Slave" | Måneskin | | Week 27 | "Aavikko" | Lauri Tähkä | |
| Week 28 | "Vauhti kiihtyy" | Portion Boys (featuring Matti ja Teppo) | | Week 28 | "Aavikko" | Lauri Tähkä | |
| Week 29 | "Bad Habits" | Ed Sheeran | | Week 29 | "Taipumaton" | Kaija Koo | |
| Week 30 | "Bad Habits" | Ed Sheeran | | Week 30 | "Taipumaton" | Kaija Koo | |
| Week 31 | "Stay" | The Kid Laroi and Justin Bieber | | Week 31 | "Lupaan" | Behm | |
| Week 32 | "Stay" | The Kid Laroi and Justin Bieber | | Week 32 | "Bad Habits" | Ed Sheeran | |
| Week 33 | "Stay" | The Kid Laroi and Justin Bieber | | Week 33 | "Bad Habits" | Ed Sheeran | |
| Week 34 | "Stay" | The Kid Laroi and Justin Bieber | | Week 34 | "Bad Habits" | Ed Sheeran | |
| Week 35 | "Stay" | The Kid Laroi and Justin Bieber | | Week 35 | "Bad Habits" | Ed Sheeran | |
| Week 36 | "Stay" | The Kid Laroi and Justin Bieber | | Week 36 | "Bad Habits" | Ed Sheeran | |
| Week 37 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 37 | "Bad Habits" | Ed Sheeran | |
| Week 38 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 38 | "Bad Habits" | Ed Sheeran | |
| Week 39 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 39 | "Bad Habits" | Ed Sheeran | |
| Week 40 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 40 | "Bad Habits" | Ed Sheeran | |
| Week 41 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 41 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 42 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 42 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 43 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 43 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 44 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 44 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 45 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 45 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 46 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 46 | "Tulikärpäset" | Haloo Helsinki! | |
| Week 47 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 47 | "Easy on Me" | Adele | |
| Week 48 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 48 | "Easy on Me" | Adele | |
| Week 49 | "Samma gamla vanliga" (remix) | Cledos, Ibe [fi] and Averagekidluke (featuring A36) | | Week 49 | "Easy on Me" | Adele | |
| Week 50 | "ABCDEFU" | Gayle | | Week 50 | "Easy on Me" | Adele | |
| Week 51 | "Snowman" | Sia | | Week 51 | "Merry Christmas" | Ed Sheeran and Elton John | |
| Week 52 | "Joulun kanssas jaan" | Haloo Helsinki! (featuring Cantores Minores) | | Week 52 | "Easy on Me" | Adele | |