| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 14-Oct-2023 | Jonathan Sexton | Ireland | 11-Jul-1985 | 38(95) |
| 09-Sep-2023 | Keith Earls | Ireland | 02-Oct-1987 | 35(343) |
| 16-Sep-2023 | Conor Murray | Ireland | 20-Apr-1989 | 34(149) |
| 14-Oct-2023 | Peter O'Mahony | Ireland | 17-Sep-1989 | 34(27) |
| 14-Oct-2023 | Bundee Aki | Ireland | 07-Apr-1990 | 33(190) |
| 09-Sep-2023 | Robert Herring | Ireland | 27-Apr-1990 | 33(135) |
| 14-Oct-2023 | Iain Henderson | Ireland | 21-Feb-1992 | 31(236) |
| 14-Oct-2023 | Jamieson Gibson-Park | Ireland | 10-May-1992 | 31(157) |
| 14-Oct-2023 | James Lowe | Wales | 08-Jul-1992 | 31(97) |
| 14-Oct-2023 | Tadhg Beirne | Ireland | 01-Aug-1992 | 31(73) |
| 14-Oct-2023 | Tadhg Furlong | Ireland | 14-Nov-1992 | 30(334) |
| 14-Oct-2023 | Josh van der Flier | Ireland | 25-Apr-1993 | 30(172) |
| 14-Oct-2023 | Gary Ringrose | Ireland | 26-Jan-1995 | 28(261) |
| 14-Oct-2023 | Andrew Porter | Ireland | 16-Jan-1996 | 27(271) |
| 14-Oct-2023 | Hugo Keenan | Ireland | 18-Jun-1996 | 27(117) |
| 23-Sep-2023 | James Ryan | Ireland | 24-Jul-1996 | 27(60) |
| 23-Sep-2023 | Ronan Kelleher | Ireland | 24-Jan-1998 | 25(242) |
| 14-Oct-2023 | Mackenzie Hansen | Ireland | 27-Mar-1998 | 25(201) |
| 14-Oct-2023 | Caelan Doris | Ireland | 02-Apr-1998 | 25(195) |
| 14-Oct-2023 | Dan Sheehan | Ireland | 17-Sep-1998 | 25(27) |
| 09-Sep-2023 | Joe McCarthy | Ireland | 26-Mar-2001 | 22(167) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).