St Vincent De Paul Society
The President of the Blackrock Conference of the SVP is Alan Lennox (a former student). Monthly meetings of the Blackrock Conference are held in the school.
The Blackrock SVP manages educational development projects using the funds raised by the College students. Members also do visitation work in Killinarden, Tallaght.
In 2012-2013 Blackrock College students raised over €100,000 for the SVP through various projects such as the Duck Race, Soccer Marathon, Tuck Shop, Poker Classic, Sixth Year Fast and Christmas Tree sales. This money was used to provide 184 Hampers for underprivileged families in Tallaght. The rest of the money is used to fund Third Level opportunities for graduates of Killinarden Community School.