Mooroolbark have quietly built a formidable squad for the 2021 season.
IN
| Harrison Keeling | Healesville |
| Ben Beddoes | Montrose |
| Austin Smith | Yarra Glen |
| James Charge | Olinda Ferny Creek |
| Samuel Baker | Lilydale |
| Patrick Abrey | Warrandyte |
| Archer Dibsdale | Kerang (Central Murray) |
OUT
| Rhys Chapman | Powelltown |
| Jarrod Bayliss | Powelltown |
| Benjamin Simpson | Mulgrave |
