| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 22-Apr-2023 | Ken Owens | Wales | 03-Jan-1987 | 36(109) |
| 07-May-2016 | Peter Edwards | Wales | 12-Aug-1980 | 35(269) |
| 03-Oct-2020 | Werner Kruger | South Africa | 23-Jan-1985 | 35(254) |
| 02-Apr-2016 | Regan King | New Zealand | 02-Oct-1980 | 35(183) |
| 27-Jan-2023 | Aaron Shingler | Wales | 07-Aug-1987 | 35(174) |
| 02-Dec-2017 | Mike Phillips | Wales | 29-Aug-1982 | 35(96) |
| 09-Feb-2012 | Iestyn Thomas | Wales | 15-Dec-1976 | 35(56) |
| 26-Dec-2009 | Simon Easterby | Ireland | 27-Jan-1975 | 34(334) |
| 25-Mar-2023 | Sione Kalamafoni | Tonga | 18-May-1988 | 34(311) |
| 28-Feb-2016 | Philip John | Wales | 25-Apr-1981 | 34(309) |
| 16-May-2009 | Kees Meeuws | New Zealand | 26-Jul-1974 | 34(295) |
| 25-Nov-2007 | Garan Evans | Wales | 16-Feb-1973 | 34(282) |
| 07-Jan-2023 | Jon Davies | Wales | 05-Apr-1988 | 34(277) |
| 22-Oct-2021 | Marc Jones | Wales | 03-Apr-1987 | 34(203) |
| 05-May-2012 | Stephen Jones | Wales | 08-Dec-1977 | 34(149) |
| 26-Oct-2019 | Petrus Johannes Juandre Kruger | South Africa | 06-Sep-1985 | 34(50) |
| 22-Mar-2013 | Deacon Manu | Fiji | 18-Feb-1979 | 34(33) |
| 04-Dec-2022 | Phil Price | Wales | 10-Nov-1988 | 34(24) |
| 07-Jan-2023 | Leigh Halfpenny | Wales | 22-Dec-1988 | 34(16) |
| 13-May-2009 | Dafydd James | Wales | 24-Jul-1975 | 33(294) |
| 18-Feb-2011 | Vernon Cooper | Wales | 12-Jun-1977 | 33(251) |
| 01-Jan-2009 | Simon Maling | New Zealand | 03-Jun-1975 | 33(213) |
| 28-Nov-2008 | Nathan Thomas | Wales | 22-Jan-1976 | 32(311) |
| 14-Apr-2018 | Tom Varndell | England | 16-Aug-1985 | 32(241) |
| 25-Mar-2023 | Gareth Davies | Wales | 18-Aug-1990 | 32(219) |
| 26-Oct-2019 | Tom James | Wales | 17-Apr-1987 | 32(192) |
| 10-May-2014 | Olly Barkley | England | 28-Nov-1981 | 32(163) |
| 03-Mar-2023 | Johnny McNicholl | Wales | 24-Sep-1990 | 32(160) |
| 30-Mar-2013 | Matthew Rees | Wales | 09-Dec-1980 | 32(111) |
| 03-Jan-2020 | Hadleigh Parkes | Wales | 05-Oct-1987 | 32(90) |
| 01-Jan-2023 | Scott Williams | Wales | 10-Oct-1990 | 32(83) |
| 23-Feb-2020 | Kieron Fonotia | Samoa | 02-Feb-1988 | 32(21) |
| 04-Dec-2022 | Blade Thomson | Scotland | 04-Dec-1990 | 32(0) |
| 01-Jan-2017 | Aled Thomas | Wales | 02-Jan-1985 | 31(365) |
| 25-Mar-2023 | Sam Lousi | Tonga | 20-Jul-1991 | 31(249) |
| 28-Nov-2008 | Sililo Martens | Tonga | 27-Apr-1977 | 31(215) |
| 07-Apr-2018 | John Barclay | Scotland | 24-Sep-1986 | 31(196) |
| 09-Jan-2009 | Gareth Morris | Wales | 10-Aug-1977 | 31(152) |
| 05-May-2012 | Sean Lamont | Scotland | 15-Jan-1981 | 31(110) |
| 14-Apr-2023 | Wyn Jones | Wales | 26-Feb-1992 | 31(47) |
| 21-May-2022 | Liam Williams | Wales | 09-Apr-1991 | 31(43) |
| 27-Feb-2021 | Uzair Cassiem | South Africa | 17-Mar-1990 | 30(348) |
| 08-Apr-2017 | Daniel Van Der Merwe | Canada | 28-Apr-1986 | 30(346) |
| 22-Mar-2021 | Lewis Rawlins | Wales | 13-Apr-1990 | 30(344) |
| 26-Sep-2008 | Gavin Thomas | Wales | 22-Oct-1977 | 30(340) |
| 22-Apr-2023 | Vaea Fifita | New Zealand | 17-Jun-1992 | 30(309) |
| 16-Apr-2011 | David Lyons | Australia | 16-Jun-1980 | 30(304) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).