| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 03-Oct-2003 |  Jim Williams | Munster | Australia | 08-Dec-1968 | 34(299) |
| 15-Nov-2003 |  Eric Elwood | Connacht | Ireland | 26-Feb-1969 | 34(262) |
| 03-Oct-2003 | Simon Kerr | Munster | Australia | 04-Jan-1970 | 33(272) |
| 20-Dec-2003 |  Matt Sexton | Ulster | New Zealand | 21-Apr-1970 | 33(243) |
| 20-Dec-2003 | Andy Ward | Ulster | Ireland | 08-Sep-1970 | 33(103) |
| 03-Oct-2003 | Michael Mullins | Munster | Ireland | 29-Oct-1970 | 32(339) |
| 20-Dec-2003 | Tyrone Howe | Ulster | Ireland | 02-Apr-1971 | 32(262) |
| 03-Oct-2003 |  John Davies | Scarlets | Wales | 01-Feb-1971 | 32(244) |
| 20-Dec-2003 | David Humphreys | Ulster | Ireland | 10-Sep-1971 | 32(101) |
| 20-Dec-2003 |  Todd Blackadder | Edinburgh Rugby | New Zealand | 20-Sep-1971 | 32(91) |
| 03-Oct-2003 | Ian Boobyer | Scarlets | Wales | 14-Jul-1971 | 32(81) |
| 14-Nov-2003 | Ryan Constable | Ulster | Australia | 22-Oct-1971 | 32(23) |
| 14-Nov-2003 | Rod Moore | Ulster | Australia | 06-Jan-1972 | 31(313) |
| 14-Nov-2003 | Matthew Proudfoot | Glasgow Warriors | Scotland | 30-Jan-1972 | 31(289) |
| 04-Oct-2003 |  Rob Appleyard | Cardiff Blues | Wales | 09-Jan-1972 | 31(268) |
| 03-Oct-2003 | Shaun Payne | Munster | Wales | 22-Feb-1972 | 31(223) |
| 20-Dec-2003 | Neil Doak | Ulster | Ireland | 21-Jun-1972 | 31(181) |
| 14-Nov-2003 | Cameron Mather | Glasgow Warriors | Scotland | 02-Aug-1972 | 31(104) |
| 03-Oct-2003 | Tim Allnutt | Connacht | Ireland | 23-Feb-1973 | 30(222) |
| 03-Oct-2003 |  Emmet Byrne | Leinster | Ireland | 04-Apr-1973 | 30(182) |
| 04-Oct-2003 | Andrew Lewis | Cardiff Blues | Wales | 13-Jun-1973 | 30(113) |
| 20-Dec-2003 | Derrick Lee | Edinburgh Rugby | Scotland | 01-Oct-1973 | 30(80) |
| 20-Dec-2003 | Brendan Laney | Edinburgh Rugby | Scotland | 16-Nov-1973 | 30(34) |
| 20-Dec-2003 | Russell Kempson | Ulster | South Africa | 23-Feb-1974 | 29(300) |
| 14-Nov-2003 | Adam Larkin | Ulster | France | 14-Feb-1974 | 29(273) |
| 15-Nov-2003 | Adrian Clarke | Connacht | Ireland | 18-Feb-1974 | 29(270) |
| 20-Dec-2003 | Craig Joiner | Edinburgh Rugby | Scotland | 21-Apr-1974 | 29(243) |
| 03-Oct-2003 | Salesi Finau | Scarlets | Tonga | 05-May-1974 | 29(151) |
| 03-Oct-2003 | Domonic Crotty | Munster | Ireland | 26-Jul-1974 | 29(69) |
| 15-Nov-2003 | Matt Mostyn | Connacht | Ireland | 10-Sep-1974 | 29(66) |
| 04-Oct-2003 | Dan Baugh | Cardiff Blues | Canada | 10-Sep-1974 | 29(24) |
| 20-Dec-2003 | James Topping | Ulster | Ireland | 18-Dec-1974 | 29(2) |
| 14-Nov-2003 | Tony McWhirter | Ulster | Ireland | 11-Feb-1975 | 28(276) |
| 15-Nov-2003 | Darren Yapp | Connacht | Ireland | 19-Feb-1975 | 28(269) |
| 20-Dec-2003 | Rowan Frost | Ulster | Ireland | 09-Jun-1975 | 28(194) |
| 03-Oct-2003 | Ben Gissing | Leinster | Australia | 15-Jul-1975 | 28(80) |
| 04-Oct-2003 | Ben Evans | Cardiff Blues | Wales | 31-Jul-1975 | 28(65) |
| 04-Oct-2003 | Nick Walne | Cardiff Blues | Wales | 18-Sep-1975 | 28(16) |
| 20-Dec-2003 | Scott Murray | Edinburgh Rugby | Scotland | 15-Jan-1976 | 27(339) |
| 04-Oct-2003 | Nathan Thomas | Cardiff Blues | Wales | 22-Jan-1976 | 27(255) |
| 03-Oct-2003 | Leigh Davies | Scarlets | Wales | 20-Feb-1976 | 27(225) |
| 15-Nov-2003 | Bernard Jackman | Connacht | Ireland | 05-May-1976 | 27(193) |
| 03-Oct-2003 | David Wallace | Munster | Ireland | 08-Jul-1976 | 27(86) |
| 03-Oct-2003 | Emyr Lewis | Scarlets | Wales | 21-Jul-1976 | 27(73) |
| 20-Dec-2003 | Nathan Hines | Edinburgh Rugby | Scotland | 29-Nov-1976 | 27(20) |
| 03-Oct-2003 | Jason Jones-Hughes | Munster | Wales | 13-Sep-1976 | 27(19) |
| 14-Nov-2003 | Nathan Ross | Glasgow Warriors | Scotland | 14-Dec-1976 | 26(335) |
| 20-Dec-2003 | Paul Steinmetz | Ulster | New Zealand | 26-Jan-1977 | 26(328) |
| 20-Dec-2003 | Matt Mustchin | Ulster | Scotland | 02-Feb-1977 | 26(321) |
| 03-Oct-2003 | Aiden McCullen | Leinster | Ireland | 05-Jan-1977 | 26(271) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).