The Leinster School's Vinnie Murray Cup is the secondary rugby union competition for secondary schools affiliated to the Leinster Branch of the IRFU (behind the Leinster Schools Rugby Senior Cup). C.B.C. Monkstown and Wesley College have won the cup the most times with three wins. Gonzaga College, St Gerard's School and The King's Hospital have all won the trophy twice. Kilkenny College and Catholic University School have won the cup once. The competition is in memory of Vincent Murray, a teacher in Clongowes Wood college who trained the rugby team and died an early death in December 1999.
Senior Schools Cup Rugby is divided into 4 tiers in two sections and each cup competition bears a name as follows: Section A Leinster Schools Rugby Senior Development Cup (effectively division 4), Section A Leinster Schools Rugby McMullen Cup (effectively division 3), Section B Leinster Schools' Vinnie Murray Cup (effectively division 2), Section B Leinster Schools Senior Cup Challenge Cup (effectively division 1).