The Marist Brothers built this College to provide a Catholic Education to the boys of Eastern Metropolitan Melbourne. Marcellin College therefore has a very close association with local Catholic Parishes and associated Catholic Primary Schools in supporting the continued faith development of boys. This association strongly influences the Colleges enrolment criteria in that Catholic boys who live within the boundaries of the Colleges designated feeder parishes are given priority of entry. These parishes are:

AlphingtonSt. Anthony’sHeidelberg WestSt. Pius X
    
Balwyn NorthSt. Bede’sIvanhoeMary Immaculate
   St. Bernadette’s
Box HillSt. Francis Xavier  
  Kew EastSt. Anne’s
BulleenSt. Clement of Rome  
  MacleodSt. Martin of Tours
DeepdeneOur Lady of Good Counsel  
  MontmorencySt. Francis Xavier
DoncasterSt. Gregory the Great  
  Eltham NorthHoly Trinity
DonvaleOur Lady of the Pines  
  Park OrchardsSt. Anne’s
ElthamOur Lady Help of Christians  
  Surrey HillsOur Holy Redeemer
GreythornSt. Bridget’s  
  TemplestoweSt. Kevin’s
HeidelbergSt. John’s St. Charles Borromeo