| MD | Players | Nationality | DOB | A(D) |
|---|---|---|---|---|
| 11-May-2018 | Taufa'ao Filise | Tonga | 26-May-1977 | 40(350) |
| 08-Apr-2023 | Josh Turnbull | Wales | 12-Mar-1984 | 39(27) |
| 21-Apr-2018 | Gethin Jenkins | Wales | 17-Nov-1980 | 37(155) |
| 20-Jan-2018 | Matthew Rees | Wales | 09-Dec-1980 | 37(42) |
| 17-Dec-2022 | Reynold Lee-lo | Samoa | 28-Feb-1986 | 36(292) |
| 08-Apr-2023 | Rhys Priestland | Wales | 07-Jan-1987 | 36(91) |
| 18-Jan-2020 | Nick Williams | New Zealand | 02-Dec-1983 | 36(47) |
| 23-May-2010 | Maama Molitika | Tonga | 26-Aug-1974 | 35(271) |
| 20-Jan-2018 | Damian Welch | Wales | 28-Jul-1982 | 35(177) |
| 14-Jan-2017 | Nicky Robinson | Wales | 03-Jan-1982 | 35(12) |
| 23-May-2010 | Martyn Williams | Wales | 01-Sep-1975 | 34(265) |
| 17-Dec-2022 | Dimitri Arhip | Moldova | 12-Nov-1988 | 34(35) |
| 21-Jan-2023 | Jason Harries | Wales | 14-Feb-1989 | 33(341) |
| 13-Dec-2014 | Adam Jones | Wales | 08-Mar-1981 | 33(280) |
| 10-Dec-2022 | Kristian Dacey | Wales | 25-Jul-1989 | 33(138) |
| 01-Apr-2017 | Jarrad Hoeata | New Zealand | 12-Dec-1983 | 33(111) |
| 15-Jan-2023 | Lloyd Williams | Wales | 30-Nov-1989 | 33(46) |
| 14-Dec-2019 | Rhys Gill | Wales | 30-Oct-1986 | 33(45) |
| 23-May-2010 | Xavier Rush | New Zealand | 13-Jul-1977 | 32(314) |
| 23-May-2010 | Deinol Jones | Wales | 18-Nov-1977 | 32(186) |
| 17-Jan-2016 | Manoa Vosawai | Italy | 12-Aug-1983 | 32(158) |
| 08-Apr-2023 | Toby Faletau | Wales | 12-Nov-1990 | 32(147) |
| 18-Jan-2020 | Filo Paulo | Samoa | 06-Nov-1987 | 32(73) |
| 01-May-2010 | Paul Tito | New Zealand | 09-Jun-1978 | 31(326) |
| 21-Jan-2023 | Liam Williams | Wales | 09-Apr-1991 | 31(287) |
| 22-Jan-2016 | Gavin Evans | Wales | 18-Jul-1984 | 31(188) |
| 17-Apr-2022 | Josh Navidi | Wales | 30-Dec-1990 | 31(109) |
| 31-Mar-2018 | George Earle | South Africa | 09-Jan-1987 | 31(81) |
| 23-May-2010 | Ben Blair | New Zealand | 26-Mar-1979 | 31(59) |
| 21-Jan-2023 | Kirby Myhill | Wales | 05-Feb-1992 | 30(351) |
| 08-Apr-2023 | Thomas Young | Wales | 18-May-1992 | 30(325) |
| 02-Apr-2021 | Willis Halaholo | Wales | 06-Jul-1990 | 30(271) |
| 18-Jan-2020 | Jason Tovey | Wales | 28-Apr-1989 | 30(265) |
| 25-Oct-2014 | Gareth Davies | Wales | 02-Mar-1984 | 30(237) |
| 21-Apr-2018 | Anton Peikrishvili | Georgia | 18-Sep-1987 | 30(216) |
| 14-Dec-2019 | Scott Andrews | Wales | 01-Aug-1989 | 30(135) |
| 23-May-2010 | Ceri Sweeney | Wales | 21-Jan-1980 | 30(123) |
| 09-Dec-2017 | James Down | Wales | 29-Aug-1987 | 30(103) |
| 11-May-2018 | Blaine Scully | United States | 29-Feb-1988 | 30(72) |
| 21-Jan-2023 | Ellis Jenkins | Wales | 29-Apr-1993 | 29(267) |
| 01-Apr-2023 | Lopeti Timani | Australia | 28-Sep-1993 | 29(185) |
| 14-Oct-2016 | Tom James | Wales | 17-Apr-1987 | 29(181) |
| 08-Apr-2023 | Ben Thomas | Wales | 27-Nov-1993 | 29(132) |
| 24-Jan-2015 | Chris Dicomidis | Wales | 14-Sep-1985 | 29(132) |
| 02-Apr-2021 | Cory Hill | Wales | 10-Feb-1992 | 29(52) |
| 18-Jan-2020 | Dan Fish | Wales | 19-Dec-1990 | 29(30) |
| 02-Apr-2021 | Matthew Morgan | Wales | 23-Apr-1992 | 28(344) |
| 18-Jan-2020 | Oliver Robinson | England | 21-Jul-1991 | 28(181) |
| 01-Apr-2017 | Sam Warburton | Wales | 05-Oct-1988 | 28(178) |
| 24-Jan-2015 | Adam Thomas | Wales | 22-Aug-1986 | 28(155) |
MD = Match date,
DOB = Date of birth,
A(D) = Age(days).