| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 18-Mar-2023 | Jonathan Sexton | Ireland | 11-Jul-1985 | 37(250) |
| 12-Mar-2023 | Conor Murray | Ireland | 20-Apr-1989 | 33(326) |
| 18-Mar-2023 | Peter O'Mahony | Ireland | 17-Sep-1989 | 33(182) |
| 18-Mar-2023 | Bundee Aki | Ireland | 07-Apr-1990 | 32(345) |
| 11-Feb-2023 | Robert Herring | Ireland | 27-Apr-1990 | 32(290) |
| 25-Feb-2023 | Finley Bealham | Ireland | 09-Oct-1991 | 31(139) |
| 12-Mar-2023 | Iain Henderson | Ireland | 21-Feb-1992 | 31(20) |
| 18-Mar-2023 | Jamieson Gibson-Park | Ireland | 10-May-1992 | 30(312) |
| 18-Mar-2023 | James Lowe | Wales | 08-Jul-1992 | 30(253) |
| 25-Feb-2023 | Jack Conan | Ireland | 29-Jul-1992 | 30(211) |
| 25-Feb-2023 | Stuart McCloskey | Ireland | 06-Aug-1992 | 30(203) |
| 11-Feb-2023 | Tadhg Beirne | Ireland | 01-Aug-1992 | 30(194) |
| 18-Mar-2023 | Tadhg Furlong | Ireland | 14-Nov-1992 | 30(124) |
| 18-Mar-2023 | Josh van der Flier | Ireland | 25-Apr-1993 | 29(327) |
| 18-Mar-2023 | Robbie Henshaw | Ireland | 12-Jun-1993 | 29(279) |
| 12-Mar-2023 | Gary Ringrose | Ireland | 26-Jan-1995 | 28(45) |
| 25-Feb-2023 | Ross Byrne | Ireland | 08-Apr-1995 | 27(323) |
| 18-Mar-2023 | Andrew Porter | Ireland | 16-Jan-1996 | 27(61) |
| 18-Mar-2023 | Hugo Keenan | Ireland | 18-Jun-1996 | 26(273) |
| 18-Mar-2023 | James Ryan | Ireland | 24-Jul-1996 | 26(237) |
| 25-Feb-2023 | Ronan Kelleher | Ireland | 24-Jan-1998 | 25(32) |
| 18-Mar-2023 | Mackenzie Hansen | Ireland | 27-Mar-1998 | 24(356) |
| 18-Mar-2023 | Caelan Doris | Ireland | 02-Apr-1998 | 24(350) |
| 18-Mar-2023 | Dan Sheehan | Ireland | 17-Sep-1998 | 24(182) |
| 25-Feb-2023 | Craig Casey | Ireland | 19-Apr-1999 | 23(312) |
| 18-Mar-2023 | Ryan Baird | Ireland | 26-Jul-1999 | 23(235) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).