Template:2021 National Hurling League Division 3A table
Division champions, automatic promotion to Division 2B Automatic relegation to Division 3B
| Team | Pld | W | D | L | F | A | Diff | Pts |
|---|---|---|---|---|---|---|---|---|
 Sligo
|
4 | 4 | 0 | 0 | 8-86 | 3-69 | 32 | 8 |
 Armagh
|
4 | 3 | 0 | 1 | 5-91 | 6-73 | 15 | 6 |
 Tyrone
|
4 | 1 | 1 | 2 | 5-79 | 6-78 | -2 | 3 |
 Monaghan
|
4 | 1 | 0 | 3 | 5-67 | 5-86 | -19 | 2 |
 Longford
|
4 | 0 | 1 | 3 | 7-69 | 10-86 | -26 | 1 |
- Warwickshire did not compete in 2021 due to the impact of the COVID-19 pandemic on Gaelic games. They returned to Division 3A in 2022.