Tercera sesión de entrenamientos libres del Gran Premio de Estiria 2021
| Pos. | Piloto | Escuderia | Tiempo | Vueltas |
|---|---|---|---|---|
| 1 |  Lewis Hamilton |
Mercedes | 1:04.369 | 19 |
| 2 |  Max Verstappen |
Red Bull | +0.204s | 16 |
| 3 |  Valtteri Bottas |
Mercedes | +0.463s | 25 |
| 4 |  Sergio Pérez |
Red Bull | +0.657s | 21 |
| 5 |  Yuki Tsunoda |
Alpha Tauri | +0.781s | 23 |
| 6 |  Pierre Gasly |
Alpha Tauri | +0.929s | 22 |
| 7 |  Charles Leclerc |
Ferrari | +0.971s | 21 |
| 8 |  Fernando Alonso |
Alpine | +1.031s | 24 |
| 9 |  Lance Stroll |
Aston Martin | +1.076s | 18 |
| 10 |  Sebastian Vettel |
Aston Martin | +1.123s | 20 |
| 11 |  Antonio Giovinazzi |
Alfa Romeo | +1.187s | 24 |
| 12 | Esteban Ocon |
Alpine | +1.307s | 22 |
| 13 | Carlos Sainz Jr. |
Ferrari | +1.329s | 22 |
| 14 |  George Russell |
Williams | +1.494s | 23 |
| 15 | Kimi Räikkönen |
Alfa Romeo | +1.573s | 25 |
| 16 | Mick Schumacher |
Haas | +1.623s | 24 |
| 17 |  Daniel Ricciardo |
McLaren | +1.747s | 20 |
| 18 | Nicholas Latifi |
Williams | +1.750s | 22 |
| 19 | Lando Norris |
McLaren | +2.285s | 19 |
| 20 |  Nikita Mazepin |
Haas | +2.323s | 22 |