Sports undertaken at the school include basketball, Gaelic football, hurling, soccer, chess, rugby, badminton and athletics. The school has won provincial and All-Ireland honours in several of these sports. In March 2009, a team representing Benildus won their first ever Dublin senior "A" schools title. In 2008/2009, the school's U-16 hurlers won the Dublin "A" division title, and the U-14 hurlers won the "A" division shield. The Benildus team beat
Coláiste Éanna on both occasions. In May 2010, in O'Toole Park, Benildus retained their Dublin Senior "A" Football title by beating local rivals Coláiste Eoin. In 2016, St Benildus College won the Leinster school's title in
Gaelic football, qualifying them for the
2016 Hogan Cup. In 1998, the college won the U-16 All Ireland soccer title which qualified them to compete in the World Students Cup in Sardinia in 1999. The school has had considerable success in chess, with its Under 19 team winning the Senior All-Ireland Championships in 2008 and 2010. In November 2013, a full-sized astroturf pitch was opened. It consists of one full-sized GAA pitch and two full-sized soccer pitches. The facilities are used by several local amateur sports clubs. == Notable people ==