Head to Head
| England U23 Development League | 2021/03/26 13:00 | Colchester U23 v Millwall U23 | L | 2-3 |
| England U23 Development League | 2020/12/15 12:00 | Millwall U23 v Colchester U23 | L | 6-1 |
| England U23 Development League | 2020/01/07 13:30 | Millwall U23 v Colchester U23 | L | 1-0 |
| England U23 Development League | 2019/09/23 12:00 | Colchester U23 v Millwall U23 | W | 3-1 |
| England U23 Development League | 2019/01/07 18:59 | Colchester U23 v Millwall U23 | L | 0-2 |
| England U23 Development League | 2018/10/30 13:30 | Millwall U23 v Colchester U23 | W | 2-3 |
| England U23 Development League | 2017/12/18 12:53 | Millwall U23 v Colchester U23 | L | 1-0 |
| England U23 Development League | 2017/09/25 17:59 | Colchester U23 v Millwall U23 | D | 0-0 |
Home History
| England U23 Development League | 2021/05/07 12:00 | Colchester U23 v Swansea U23 | D | 1-1 |
| England U23 Development League | 2021/05/03 12:00 | Coventry U23 v Colchester U23 | L | 2-1 |
| England U23 Development League | 2021/04/26 12:00 | Colchester U23 v Hull U23 | L | 1-2 |
| England U23 Development League | 2021/04/20 12:00 | Sheff Wed U23 v Colchester U23 | L | 2-0 |
| England U23 Development League | 2021/04/07 12:00 | Colchester U23 v Wigan U23 | L | 1-2 |
| England U23 Development League | 2021/03/26 13:00 | Colchester U23 v Millwall U23 | L | 2-3 |
| England U23 Development League | 2021/03/22 13:00 | Crewe U23 v Colchester U23 | L | 2-0 |
| England U23 Development League | 2021/03/02 12:00 | Colchester U23 v Bristol City U23 | L | 1-2 |
Away History
| UK Friendlies | 2021/07/27 18:15 | Eastbourne Borough v Millwall U23 | L | 2-1 |
| UK Friendlies | 2021/07/15 18:30 | Dulwich v Millwall U23 | W | 0-2 |
| England U23 Development League | 2021/05/04 16:30 | Hull U23 v Millwall U23 | W | 0-2 |
| England U23 Development League | 2021/04/27 13:00 | Millwall U23 v Sheff Utd U23 | L | 1-2 |
| England U23 Development League | 2021/04/20 12:00 | Barnsley U23 v Millwall U23 | L | 1-0 |
| England U23 Development League | 2021/04/13 13:00 | Millwall U23 v Birmingham U23 | L | 2-3 |
| England U23 Development League | 2021/03/30 12:00 | Bristol City U23 v Millwall U23 | L | 3-0 |
| England U23 Development League | 2021/03/26 13:00 | Colchester U23 v Millwall U23 | W | 2-3 |