| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 29-Mar-2013 | Ronan O'Gara | Ireland | 07-Mar-1977 | 36(22) |
| 09-Feb-2013 | Marcus Horan | Ireland | 07-Sep-1977 | 35(156) |
| 22-Dec-2012 | Peter Stringer | Ireland | 13-Dec-1977 | 35(10) |
| 29-Mar-2013 | Doug Howlett | New Zealand | 21-Sep-1978 | 34(190) |
| 13-Apr-2013 | Donncha O'Callaghan | Ireland | 24-Mar-1979 | 34(21) |
| 03-May-2013 | Paul O'Connell | Ireland | 20-Oct-1979 | 33(196) |
| 29-Mar-2013 | BJ Botha | South Africa | 04-Jan-1980 | 33(85) |
| 13-Apr-2013 | James Coughlan | Ireland | 09-Dec-1980 | 32(125) |
| 13-Apr-2013 | James Downey | Ireland | 23-Mar-1981 | 32(21) |
| 03-May-2013 | Casey Laulala | New Zealand | 03-May-1982 | 31(1) |
| 19-Apr-2013 | Niall Ronan | Ireland | 14-Sep-1982 | 30(218) |
| 19-Apr-2013 | Wian du Preez | South Africa | 30-Oct-1982 | 30(172) |
| 19-Apr-2013 | Damian Varley | Ireland | 29-Oct-1983 | 29(173) |
| 05-Jan-2013 | Donnacha Ryan | Ireland | 11-Dec-1983 | 29(26) |
| 03-May-2013 | Dennis Hurley | Ireland | 15-Jul-1984 | 28(292) |
| 03-May-2013 | Johne Murphy | Ireland | 10-Nov-1984 | 28(174) |
| 03-May-2013 | Billy Holland | Ireland | 03-Aug-1985 | 27(273) |
| 29-Mar-2013 | Duncan Williams | Ireland | 17-Apr-1986 | 26(347) |
| 03-May-2013 | Ian Keatley | Ireland | 01-Apr-1987 | 26(33) |
| 13-Apr-2013 | Tommy O'Donnell | Ireland | 21-May-1987 | 25(328) |
| 19-Apr-2013 | Ivan Dineen | Scotland | 05-Jul-1987 | 25(289) |
| 13-Apr-2013 | Felix Jones | Ireland | 15-Aug-1987 | 25(242) |
| 05-Jan-2013 | Keith Earls | Ireland | 02-Oct-1987 | 25(96) |
| 19-Apr-2013 | Stephen Archer | Ireland | 29-Jan-1988 | 25(81) |
| 19-Apr-2013 | David Foley | Ireland | 16-May-1988 | 24(338) |
| 03-May-2013 | Mike Sherry | Ireland | 18-Jun-1988 | 24(319) |
| 03-May-2013 | John Ryan | Ireland | 02-Aug-1988 | 24(274) |
| 03-May-2013 | Cathal Sheridan | Ireland | 14-Nov-1988 | 24(170) |
| 03-May-2013 | Dave Kilcoyne | Ireland | 14-Dec-1988 | 24(140) |
| 02-Mar-2013 | Ian Nagle | Ireland | 17-Oct-1988 | 24(136) |
| 13-Apr-2013 | Conor Murray | Ireland | 20-Apr-1989 | 23(358) |
| 03-May-2013 | Ronan O'Mahony | Ireland | 28-May-1989 | 23(340) |
| 13-Apr-2013 | Peter O'Mahony | Ireland | 17-Sep-1989 | 23(208) |
| 03-May-2013 | Sean Dougall | Ireland | 28-Oct-1989 | 23(187) |
| 09-Feb-2013 | Danny Barnes | Ireland | 07-Oct-1989 | 23(125) |
| 03-May-2013 | Dave O'Callaghan | Ireland | 12-Jan-1990 | 23(111) |
| 13-Apr-2013 | Simon Zebo | Ireland | 16-Mar-1990 | 23(28) |
| 16-Feb-2013 | CJ Stander | Ireland | 05-Apr-1990 | 22(318) |
| 22-Dec-2012 | Luke O'Dea | Ireland | 18-Jul-1990 | 22(158) |
| 03-May-2013 | Patrick Butler | Ireland | 01-Dec-1990 | 22(154) |
| 03-May-2013 | JJ Hanrahan | Ireland | 27-Jul-1992 | 20(280) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).