The following groups are active in the Pro-Cathedral parish:
Parish Finance Committee
Society of Saint Vincent de Paul
Ministers of Holy Communion
Readers
Ministers of Welcome and Hospitality
Church Collectors
Weekday Volunteers
The Palestrina Choir
Shalom Group
Saint Mary’s Pro-Cathedral Girls Choir
Central Model Junior School
Central Model Senior School
Scoil Chaoimhin Gaelscoil
Rotunda Hospital Chaplaincy
North City Centre Deanery