| Administrator(s) | England and Wales Cricket Board |
|---|---|
| Cricket format | 3 days (4 day final) |
| Tournament format(s) | League system and a final |
| Champions | Oxfordshire (5th title) |
| Participants | 20 |
| Matches | 41 |
| Most runs | Graham Wagg (Shropshire) 583 runs |
| Most wickets | Tom Brett (Bedfordshire) 36 wickets |
The 2021 National Counties Championship was the 116th National Counties Cricket Championship season. It is contested in two divisions. Berkshire were the defending champions. The title was won by Oxfordshire by defeating Suffolk in the final by 178 runs. The final was played in Tring, Hertfordshire.