| Dates | 29 May 2021 – 25 September 2021 |
|---|---|
| Administrator(s) | England and Wales Cricket Board |
| Cricket format | 50-over cricket |
| Tournament format(s) | Round-robin and playoffs |
| Champions | Southern Vipers (2nd title) |
| Participants | 8 |
| Matches | 30 |
| Most runs | Sophie Luff (417) |
| Most wickets | Kirstie Gordon (16) |
| Official website | ECB |
The 2021 Rachael Heyhoe Flint Trophy was the second edition of the Rachael Heyhoe Flint Trophy, an English women's cricket 50-over domestic competition, which took place between 29 May and 25 September 2021. It featured eight teams playing in a round-robin group, followed by a knock-out round. The holders were the Southern Vipers, who won the inaugural competition in 2020. It ran alongside the Charlotte Edwards Cup. The tournament was named after former England captain Rachael Heyhoe Flint, Baroness Heyhoe-Flint, who died in 2017.[1]
Southern Vipers finished top of the group stage, and as a result, they qualified automatically for the final. Northern Diamonds and Central Sparks finished second and third respectively, and so contested the playoff, which was won by the Diamonds to qualify for the final. In the final at the County Ground, Northampton, Southern Vipers won their second Rachael Heyhoe Flint Trophy in two years, beating Northern Diamonds by 3 wickets with 2 balls to spare.