Terenure College RFC was founded on November 14th 1940. With a great love for the game and concerned that past pupils were not playing rugby union after leaving school, Rev. Fr Jackie Corbett O' Carm chaired a meeting of rugby playing past pupils of Terenure College in the Hotel Lenehan, Harcourt Street, Dublin. Those present included Johnny Corrigan, Hugh Clarke, Joe Clarke, Sean Ryan, P.P. Maguire, Colm O' Nolan, Niall Thunder, Hugh Milroy, Dick Dunlop, Des Giltrap, Jack Hearne and Dudley Fisher. Terenure Collegians Rugby Football Club was formed. Fr. Corbett was elected first President. J.P. Clarke was elected Hon. Secretary Johnny Corrigan as Hon . Treasurer and Hugh Milroy as Club Captain.

Terenure played their first match shortly afterwards against the Terenure College SCT at the time. The club won 8 points to 3. It took until January 8th 1959 for Terenure to be promoted to a Senior club after fourteen applications to the Leinster Branch, that after winning five Junior 1 titles and many other trophies. Two years later the great Mick Hipwell was selected to play for Ireland, Terenure's first Irish international. Mick donned the green jersey against England at Twickenham.

The years 1965/66/67 were great seasons for Terenure under the captaincy of Eddie Coleman (later to be IRFU president), as they won the Leinster Senior league twice in a row. Over