Tercera sesión de entrenamientos libres del Gran Premio de Mónaco 2021
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Max Verstappen |
Red Bull | 1:11.294 | 19 |
| 2 |  Carlos Sainz Jr. |
Ferrari | +0.047s | 28 |
| 3 |  Charles Leclerc |
Ferrari | +0.258s | 27 |
| 4 |  Valtteri Bottas |
Mercedes | +0.471s | 21 |
| 5 |  Sergio Pérez |
Red Bull | +0.523s | 18 |
| 6 |  Lando Norris |
McLaren | +0.694s | 20 |
| 7 |  Lewis Hamilton |
Mercedes | +0.726s | 20 |
| 8 | Kimi Räikkönen |
Alfa Romeo | +1.004s | 25 |
| 9 |  Pierre Gasly |
Alpha Tauri | +1.063s | 28 |
| 10 |  Sebastian Vettel |
Aston Martin | +1.243s | 24 |
| 11 |  Antonio Giovinazzi |
Alfa Romeo | +1.245s | 21 |
| 12 |  Lance Stroll |
Aston Martin | +1.406s | 22 |
| 13 |  Daniel Ricciardo |
McLaren | +1.665s | 25 |
| 14 | Mick Schumacher |
Haas | +1.845s | 21 |
| 15 | Fernando Alonso |
Alpine | +2.035s | 19 |
| 16 |  Nikita Mazepin |
Haas | +2.096s | 20 |
| 17 | George Russell |
Williams | +2.153s | 29 |
| 18 | Nicholas Latifi |
Williams | +2.181s | 22 |
| 19 |  Yuki Tsunoda |
Alpha Tauri | +2.228s | 30 |
| 20 | Esteban Ocon |
Alpine | +2.320s | 18 |