| MD | Players | Club | Nationality | DOB | A(D) |
|---|---|---|---|---|---|
| 05-Apr-2024 |  Kirill Gotovtsev | Gloucester | Russia | 17-Jul-1987 | 36(263) |
| 05-Apr-2024 |  Julien Dumora | Castres | France | 24-Mar-1988 | 36(12) |
| 08-Dec-2023 |  Rob Simmons | Clermont Auvergne | Australia | 19-Apr-1989 | 34(233) |
| 05-Apr-2024 | Jonny May | Gloucester | England | 01-Apr-1990 | 34(5) |
| 08-Dec-2023 | George Moala | Clermont Auvergne | New Zealand | 05-Nov-1990 | 33(33) |
| 08-Dec-2023 |  Hamish Watson | Edinburgh Rugby | Scotland | 15-Oct-1991 | 32(54) |
| 08-Dec-2023 | Viliame Mata | Edinburgh Rugby | Fiji | 22-Oct-1991 | 32(47) |
| 08-Dec-2023 | Sebastien Bezy | Clermont Auvergne | France | 22-Nov-1991 | 32(16) |
| 05-Apr-2024 | Filipo Nakosi | Castres | Fiji | 08-Apr-1992 | 31(363) |
| 05-Apr-2024 | Santiago Socino | Gloucester | Argentina | 07-May-1992 | 31(334) |
| 08-Dec-2023 | Robin Hislop | Edinburgh Rugby | Scotland | 26-Feb-1992 | 31(286) |
| 05-Apr-2024 | Freddie Clarke | Gloucester | England | 10-Oct-1992 | 31(178) |
| 05-Apr-2024 | Val Ruskin | Gloucester | Georgia | 12-Oct-1992 | 31(175) |
| 08-Dec-2023 | Peceli Yato | Clermont Auvergne | Fiji | 17-Jan-1993 | 30(325) |
| 08-Dec-2023 | Etienne Falgoux | Clermont Auvergne | France | 19-Jan-1993 | 30(323) |
| 08-Dec-2023 | Tomas Lavanini | Clermont Auvergne | Argentina | 22-Jan-1993 | 30(320) |
| 08-Dec-2023 | Mark Bennett | Edinburgh Rugby | Scotland | 03-Feb-1993 | 30(308) |
| 08-Dec-2023 | Tim Swiel | Edinburgh Rugby | South Africa | 04-Jun-1993 | 30(187) |
| 05-Apr-2024 | Aurelein Azar | Castres | France | 10-Jun-1994 | 29(300) |
| 08-Dec-2023 | Chris Dean | Edinburgh Rugby | Scotland | 05-Mar-1994 | 29(278) |
| 05-Apr-2024 | Josaia Raisuqe | Castres | Fiji | 22-Jul-1994 | 29(258) |
| 05-Apr-2024 | Lewis Ludlow | Gloucester | England | 11-Sep-1994 | 29(207) |
| 08-Dec-2023 | Julien Heriteau | Clermont Auvergne | France | 12-Sep-1994 | 29(87) |
| 08-Dec-2023 | Javan Sebastian | Edinburgh Rugby | Scotland | 22-Sep-1994 | 29(77) |
| 08-Dec-2023 | Pita Sowakula | Clermont Auvergne | Fiji | 26-Oct-1994 | 29(43) |
| 08-Dec-2023 | Alex Newsome | Clermont Auvergne | Australia | 20-Jan-1995 | 28(322) |
| 05-Apr-2024 | Jack Goodhue | Castres | New Zealand | 13-Jun-1995 | 28(297) |
| 05-Apr-2024 | Pierre Popelin | Castres | France | 23-Jun-1995 | 28(287) |
| 08-Dec-2023 | Ben Vellacott | Edinburgh Rugby | Scotland | 28-Mar-1995 | 28(255) |
| 08-Dec-2023 | Folau Faingaa | Clermont Auvergne | Australia | 05-May-1995 | 28(217) |
| 08-Dec-2023 | Duhan van der Merwe | Edinburgh Rugby | Scotland | 04-Jun-1995 | 28(187) |
| 05-Apr-2024 | Gauthier Doubrere | Castres | France | 24-Dec-1995 | 28(103) |
| 05-Apr-2024 | Ruan Ackermann | Gloucester | South Africa | 29-Dec-1995 | 28(98) |
| 05-Apr-2024 | Quentin Walcker | Castres | France | 21-Feb-1996 | 28(44) |
| 08-Dec-2023 | Anthony Belleau | Clermont Auvergne | France | 08-Apr-1996 | 27(243) |
| 05-Apr-2024 | Ollie Thorley | Gloucester | England | 11-Sep-1996 | 27(206) |
| 05-Apr-2024 | Gaetan Barlot | Castres | France | 13-Apr-1997 | 26(358) |
| 08-Dec-2023 | Cristian Ojovan | Clermont Auvergne | Moldova | 04-Jan-1997 | 26(338) |
| 05-Apr-2024 | Baptiste Delaporte | Castres | France | 25-May-1997 | 26(316) |
| 05-Apr-2024 | Zac Mercer | Gloucester | England | 28-Jun-1997 | 26(282) |
| 08-Dec-2023 | Luke Crosbie | Edinburgh Rugby | Scotland | 22-Apr-1997 | 26(230) |
| 08-Dec-2023 | Bautista Delguy | Clermont Auvergne | Argentina | 22-Apr-1997 | 26(230) |
| 05-Apr-2024 | Santiago Carreras | Gloucester | Argentina | 30-Mar-1998 | 26(7) |
| 08-Dec-2023 | Jamie Hodgson | Edinburgh Rugby | Scotland | 19-Mar-1998 | 25(264) |
| 05-Apr-2024 | Max Llewellyn | Gloucester | Wales | 13-Jan-1999 | 25(83) |
| 08-Dec-2023 | Lucas Dessaigne | Clermont Auvergne | France | 07-Feb-1999 | 24(304) |
| 05-Apr-2024 | Caolan Englefield | Gloucester | England | 01-Nov-1999 | 24(156) |
| 08-Dec-2023 | Marshall Sykes | Edinburgh Rugby | Scotland | 29-Dec-1999 | 23(344) |
| 05-Apr-2024 | Gauthier Maravat | Castres | France | 11-Jun-2000 | 23(298) |
| 05-Apr-2024 | Florent van Verberghe | Castres | France | 22-Jul-2000 | 23(257) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).