2020–21 Big Bash League season
| Dates | 10 December 2020 – 6 February 2021 |
|---|---|
| Administrator(s) | Cricket Australia |
| Cricket format | Twenty20 |
| Tournament format(s) | Double round robin and Playoffs |
| Champions | Sydney Sixers (3rd title) |
| Participants | 8 |
| Matches | 61 |
| Attendance | 540,231 (8,856 per match) |
| Player of the series | Josh Philippe (Sydney Sixers) |
| Most runs | Alex Hales (Sydney Thunder) (543) |
| Most wickets | Jhye Richardson (Perth Scorchers) (29) |
| Official website | bigbash.com.au |
The 2020–21 Big Bash League season or BBL|10 was the tenth season of the Big Bash League, the professional men's Twenty20 domestic cricket competition in Australia. On 15 July 2020, Cricket Australia confirmed the fixtures for the tournament, with the first match taking place on 10 December 2020 and the final on 6 February 2021 The majority of the matches played at night.
Sydney Sixers were the defending champions. They successfully defended their title following a 27-run victory over Perth Scorchers in the final.