| We Are Dublin Championship Semi Finals U15 |
| 16/10/2021 |
| 13:30 | Castleknock | 2-6 | vs | 2-2 | Erins Isle | More |
| Venue : Castleknock Referee : Lucan Sarsfields (Pending) |
| 13:30 | Commercials | 8-4 | vs | 2-1 | Na Fianna B | More |
| Venue : Commercials Referee : Lucan Sarsfields (Pending) |
| 13:30 | Lucan Sarsfields | 0-4 | vs | 0-7 | Ballyboden St Endas | More |
| Venue : Lucan Sarsfields Referee : St Oliver Plunketts ER (Pending) |
| 13:30 | Na Fianna | 4-9 | vs | 5-3 | Faughs/Celtic | More |
| Venue : Na Fianna Referee : Setanta (Pending) |
| 30/10/2021 |
| 13:30 | Ballinteer St Johns A | 3-5 | vs | 6-10 | St Vincents | More |
| Venue : Ballinteer St Johns Referee : Kilmacud Crokes (Pending) |
| 13:30 | Clontarf | 6-7 | vs | 1-2 | Naomh Olaf | More |
| Venue : Clontarf Referee : St Vincents (Pending) |