| Tournament details | |
|---|---|
| Country | United States |
| Teams | 16 |
| Defending champions | Real Monarchs (2019) |
| Final positions | |
| Champions | Orange County SC (1st title) |
| Runner-up | Tampa Bay Rowdies |
| Tournament statistics | |
| Matches played | 14 |
| Goals scored | 40 (2.86 per match) |
| Attendance | 93,029 (6,645 per match) |
| Top goal scorer(s) |  Ronaldo Damus(4 goals) |
The 2021 USL Championship playoffs (branded as the 2021 USL Championship Playoffs presented by TwinSpires for sponsorship reasons) was the post-season championship of the 2021 USL Championship. It was the eleventh edition of the USL Championship playoffs. The playoffs began on November 5, and concluded with the USL Championship Final on November 28.
Tampa Bay Rowdies won the regular season with 71 standings points.[1] They were beaten in the Final by Orange County SC, which won its first league title.
Real Monarchs, having won the title in 2019, were the title holders, since the 2020 Final was cancelled due to the COVID-19 outbreak in the Rowdies and the title was not awarded. However, they were eliminated in the regular season as they finished bottom of the Mountain Division table.
- ^ "Matchday Report: Rowdies Defeat Lights FC, Clinch Homefield Advantage in Postseason". USLChampionship.com. USL Championship. October 31, 2021.