Internationals who have played for Cardiff RFC at some time during their career.
| Name | Between Years | Team |
|---|---|---|
| Rob Ackerman | 1980 - 1985 | Wales |
| Cory Allen | 2013 - 2017 | Wales |
| Scott A Andrews | 2011 - 2017 | Wales |
| Rob Appleyard | 1997 - 1998 | Wales |
| Charlie Arthur | 1888 - 1891 | Wales |
| Cliff Ashton | 1959 - 1962 | Wales |
| Keiron Assiratti | 2023 - 2025 | Wales |
| Tom Barlow | 1884 - 1884 | Wales |
| Bob Barrell | 1929 - 1933 | Wales |
| Arthur Bassett | 1934 - 1938 | Wales |
| Jack Bassett | 1929 - 1932 | Wales |
| Dan Baugh | 1998 - 2002 | Canada |
| Geoff Beckingham | 1953 - 1958 | Wales |
| Jacob Beetham | 2024 - 2024 | Wales |
| Mark Bennett | 1995 - 1995 | Wales |
| Ellis Bevan | 2024 - 2024 | Wales |
| John Bevan | 1971 - 1973 | Wales |
| Roger Bidgood | 1992 - 1993 | Wales |
| Norman Biggs | 1888 - 1894 | Wales |
| Selwyn Biggs | 1895 - 1900 | Wales |
| Jim Birch | 1911 - 1911 | Wales |
| Dai Bishop | 1984 - 1984 | Wales |
| Steve Blackmore | 1987 - 1987 | Wales |
| John Blake | 1899 - 1901 | Wales |
| Alec Bland | 1887 - 1890 | Wales |
| Ronnie Boon | 1930 - 1933 | Wales |
| Jim Botham | 2020 - 2025 | Wales |
| Harry Bowcott | 1929 - 1933 | Wales |
| Alfred Brice | 1899 - 1904 | Wales |
| Jim Brown | 1925 - 1925 | Wales |
| John Brown | 1907 - 1909 | Wales |
| Charles Bryant | 1920 - 1920 | Ireland |
| Dai Burcher | 1977 - 1977 | Wales |
| Paul Burke | 1995 - 2003 | Ireland |
| Jim Burns | 1927 - 1927 | Wales |
| Percy Bush | 1905 - 1910 | Wales |
| Ed Byrne | 2020 - 2021 | Ireland |
| Richard Cardus | 1979 - 1979 | England |
| Rhys Carre | 2019 - 2025 | Wales |
| Alun Carter | 1991 - 1991 | Wales |
| James Clare | 1882 - 1882 | Wales |
| Billy Cleaver | 1947 - 1950 | Wales |
| Richie Collins | 1987 - 1995 | Wales |
| Terry Cook | 1949 - 1949 | Wales |
| Gareth Cooper | 2001 - 2010 | Wales |
| William Cope | 1896 - 1896 | Wales |
| Robin Copeland | 2014 - 2014 | Ireland |
| Arthur Cornish | 1923 - 1926 | Wales |
| Fred Cornish | 1897 - 1899 | Wales |
| Pele Cowley | 2014 - 2019 | Samoa |
| Olly Cracknell | 2025 - 2025 | Wales |
| Darren Crompton | 2007 - 2007 | England |
| Alex Cuthbert | 2011 - 2023 | Wales |
| Chris Czekaj | 2005 - 2010 | Wales |
| Kristian Dacey | 2015 - 2017 | Wales |
| Malcolm Dacey | 1983 - 1987 | Wales |
| Pat Daniels | 1981 - 1982 | Wales |
| Dickie David | 1907 - 1907 | Wales |
| Adrian Davies | 1990 - 1995 | Wales |
| Barry Davies | 1896 - 1896 | Wales |
| Bradley Davies | 2009 - 2019 | Wales |
| Brian Davies | 1962 - 1963 | Wales |
| Cecil Davies | 1934 - 1934 | Wales |
| Cliff Davies | 1947 - 1951 | Wales |
| Cowboy Davies | 1956 - 1956 | Wales |
| Cyril Davies | 1957 - 1961 | Wales |
| Daph Davies | 1921 - 1925 | Wales |
| Ewan Davies | 1912 - 1912 | Wales |
| Gareth Davies | 1978 - 1985 | Wales |
| Gerald Davies | 1966 - 1978 | Wales |
| Glyn R Davies | 1947 - 1951 | Wales |
| Gwynne Davies | 1928 - 1930 | Wales |
| Huw Davies | 1981 - 1986 | England |
| Jonathan Davies | 1985 - 1997 | Wales |
| Leigh Davies | 1996 - 2003 | Wales |
| Rev. Alban Davies | 1913 - 1914 | Wales |
| Seb Davies | 2017 - 2022 | Wales |
| Stan Davies | 1923 - 1923 | Wales |
| William Edward Norman (Wendy) Davis | 1939 - 1939 | Wales |
| Harry Day | 1892 - 1894 | Wales |
| Hans de Goede | 1974 - 1987 | Canada |
| Bobby Delahay | 1922 - 1927 | Wales |
| Dean Dewdney | 1996 - 1996 | Zimbabwe |
| George Dobson | 1900 - 1900 | Wales |
| Tom Dobson | 1898 - 1899 | Wales |
| Cam Dolan | 2013 - 2021 | USA |
| Corey Domachowski | 2023 - 2024 | Wales |
| Alun Donovan | 1978 - 1982 | Wales |
| Bruce Douglas | 2002 - 2006 | Scotland |
| William Matthew (Billy) Douglas | 1886 - 1887 | Wales |
| Louis Dyke | 1910 - 1911 | Wales |
| Gareth Edwards | 1967 - 1978 | Wales |
| Ian Eidman | 1983 - 1986 | Wales |
| Jack Elliot | 1894 - 1898 | Wales |
| William Elsey | 1895 - 1895 | Wales |
| Arthur Emyr | 1989 - 1991 | Wales |
| Grant Esterhuizen | 2000 - 2000 | South Africa |
| Ben Evans | 1998 - 2004 | Wales |
| Bill Evans | 1882 - 1883 | Wales |
| David (Dai) Evans | 1896 - 1898 | Wales |
| David William Evans | 1889 - 1891 | Wales |
| David Wyn Evans | 1989 - 1995 | Wales |
| Gareth Evans | 1977 - 1978 | Wales |
| Gavin Evans | 2006 - 2006 | Wales |
| Gwyn Evans | 1947 - 1949 | Wales |
| Jarrod Evans | 2018 - 2025 | Wales |
| JD Evans | 1958 - 1958 | Wales |
| Owen James (Jem) Evans | 1887 - 1888 | Wales |
| Roddy Evans | 1958 - 1962 | Wales |
| Rosser Evans | 1889 - 1889 | Wales |
| Norman Fender | 1930 - 1931 | Wales |
| Taufa'ao Filise | 2001 - 2011 | Tonga |
| James Finlay | 1913 - 1920 | Ireland |
| Alex Finlayson | 1974 - 1974 | Wales |
| Dai Fitzgerald | 1894 - 1894 | Wales |
| Steve Ford | 1990 - 1991 | Wales |
| Wayne Fyvie | 1996 - 1996 | South Africa |
| Rhys Gabe | 1901 - 1908 | Wales |
| Ernie George | 1895 - 1896 | Wales |
| Reggie Gibbs | 1906 - 1911 | Wales |
| Ray Giles | 1983 - 1987 | Wales |
| Rhys Gill | 2010 - 2016 | Wales |
| Barry Girling | 1881 - 1881 | Wales |
| Mason Grady | 2023 - 2024 | Wales |
| Gareth Griffiths | 1953 - 1957 | Wales |
| Mike Griffiths | 1988 - 1998 | Wales |
| Adrian Hadley | 1983 - 1988 | Wales |
| Uilisi Halaholo | 2021 - 2022 | Wales |
| Leigh Halfpenny | 2008 - 2023 | Wales |
| Mike Hall | 1988 - 1995 | Wales |
| Luke Hamilton | 2017 - 2018 | Scotland |
| Ernie Hammett | 1920 - 1922 | England |
| Frank Hancock | 1884 - 1886 | Wales |
| Froude Hancock | 1886 - 1890 | England |
| Arthur Flowers (Boxer) Harding | 1902 - 1908 | Wales |
| Danny Harris | 1959 - 1961 | Wales |
| Iestyn Harris | 2001 - 2004 | Wales |
| Dai Hayward | 1963 - 1964 | Wales |
| Dick Hellings | 1897 - 1901 | Wales |
| Cory Hill | 2016 - 2024 | Wales |
| Frank Hill | 1885 - 1894 | Wales |
| Simon Hill | 1993 - 1997 | Wales |
| Syd Hinam | 1925 - 1926 | Wales |
| John Hinton | 1884 - 1884 | Wales |
| Jarrad Hoeata | 2011 - 2011 | New Zealand |
| Terry Holmes | 1978 - 1985 | Wales |
| Kevin Hopkins | 1985 - 1987 | Wales |
| Edward Horsfall | 1949 - 1949 | England |
| William Howell | 1888 - 1888 | Wales |
| Rob Howley | 1996 - 2002 | Wales |
| Sawdust Hughes | 1887 - 1889 | Wales |
| Billy Hullin | 1967 - 1967 | Wales |
| Jon Humphreys | 1995 - 2003 | Wales |
| Viv Huzzey | 1898 - 1899 | Wales |
| Albert Hybart | 1887 - 1887 | Wales |
| Hugh Ingledew | 1890 - 1891 | Wales |
| Iorrie Isaacs | 1933 - 1933 | Wales |
| Dafydd James | 1996 - 2007 | Wales |
| Maldwyn James | 1947 - 1948 | Wales |
| Tom James | 2007 - 2016 | Wales |
| Lee Jarvis | 1997 - 1997 | Wales |
| Billy Jenkins | 1912 - 1913 | Wales |
| Ellis Jenkins | 2016 - 2022 | Wales |
| Llew Jenkins | 1923 - 1923 | Wales |
| Ned Jenkins | 1927 - 1932 | Wales |
| Neil Jenkins | 1991 - 2002 | Wales |
| Barry John | 1966 - 1972 | Wales |
| Glyn John | 1954 - 1954 | Wales |
| Paul John | 1994 - 1998 | Wales |
| Spencer John | 1995 - 2002 | Wales |
| WillGriff John | 2021 - 2025 | Wales |
| Tom Johnson | 1921 - 1925 | Wales |
| Adam Jones | 2006 - 2006 | Wales |
| Arthur Jones | 1933 - 1933 | Wales |
| Bob Jones | 1901 - 1901 | Wales |
| Cliff Jones | 1934 - 1938 | Wales |
| Derwyn Jones | 1994 - 1996 | Wales |
| Douglas Marsden Jones | 1921 - 1924 | Wales |
| Gareth Jones | 1995 - 1995 | Wales |
| Gwyn Jones | 1996 - 1997 | Wales |
| Hal Jones | 1929 - 1929 | Wales |
| J Arthur Jones | 1883 - 1883 | Wales |
| Ken Jones | 1962 - 1966 | Wales |
| Keri Jones | 1967 - 1968 | Wales |
| Kingsley Jones | 1960 - 1963 | Wales |
| Robert Jones | 1986 - 1995 | Wales |
| William (Pussy) Jones | 1898 - 1898 | Wales |
| Windham Jones | 1905 - 1905 | Wales |
| Sid Judd | 1953 - 1955 | Wales |
| Dick Kedzlie | 1888 - 1888 | Wales |
| Mike Knill | 1976 - 1976 | Wales |
| Tavis Knoyle | 2010 - 2013 | Wales |
| Owen Lane | 2019 - 2021 | Wales |
| Stuart Lane | 1978 - 1980 | Wales |
| ALP Lewis | 1996 - 2002 | Wales |
| Clem Lewis | 1912 - 1923 | Wales |
| Dillon Lewis | 2017 - 2024 | Wales |
| Emyr Lewis | 1991 - 1996 | Wales |
| Rhodri Lewis | 1981 - 1982 | Wales |
| Tom Lewis | 1926 - 1927 | Wales |
| Shane Lewis-Hughes | 2020 - 2020 | Wales |
| Max Llewellyn | 2023 - 2025 | Wales |
| Willie Llewellyn | 1899 - 1905 | Wales |
| Evan Lloyd | 2024 - 2025 | Wales |
| Christian Loader | 1995 - 1997 | Wales |
| Campese Ma'afu | 2010 - 2019 | Fiji |
| Salesi Ma'afu | 2010 - 2011 | Australia |
| Martyn Madden | 2002 - 2003 | Wales |
| Ossie Male | 1921 - 1928 | Wales |
| Les Manfield | 1939 - 1948 | Wales |
| Alex Mann | 2024 - 2025 | Wales |
| BB Mann | 1881 - 1881 | Wales |
| Mackenzie Martin | 2024 - 2024 | Wales |
| Chris Matthews | 1939 - 1939 | Wales |
| Jack Matthews | 1947 - 1951 | Wales |
| Allen McCarley | 1938 - 1938 | Wales |
| Frank Mills | 1892 - 1896 | Wales |
| Craig Mitchell | 2009 - 2013 | Wales |
| Andy Moore | 1995 - 1996 | Wales |
| Steve Moore | 1997 - 1997 | Wales |
| Cliff Morgan | 1951 - 1958 | Wales |
| Craig Morgan | 2002 - 2005 | Wales |
| Dr. Teddy Morgan | 1902 - 1908 | Wales |
| Harry Morgan | 1956 - 1956 | Wales |
| Robert Morgan | 1962 - 1963 | Wales |
| Scott Morgan | 2007 - 2007 | Wales |
| William Morgan | 1910 - 1910 | Wales |
| Bill Morris | 1965 - 1966 | Wales |
| Darren Morris | 1998 - 2004 | Wales |
| Haydn Morris | 1951 - 1955 | Wales |
| Pieter Muller | 1992 - 1999 | South Africa |
| Jamie Murphy | 2017 - 2017 | Germany |
| Lyndon Mustoe | 1995 - 1998 | Wales |
| Kirby Myhill | 2021 - 2021 | Wales |
| Josh Navidi | 2013 - 2022 | Wales |
| Barry Nelmes | 1975 - 1978 | England |
| Trevor Nicholas | 1919 - 1919 | Wales |
| Gwyn Nicholls | 1896 - 1906 | Wales |
| Howard Nicholls | 1958 - 1958 | Wales |
| Syd Nicholls | 1888 - 1891 | Wales |
| Howie Norris | 1963 - 1966 | Wales |
| Bob Norster | 1982 - 1989 | Wales |
| William Norton | 1882 - 1884 | Wales |
| Des O'Brien | 1948 - 1952 | Ireland |
| Billy O'Neill | 1904 - 1908 | Wales |
| John O'Shea | 1967 - 1968 | Wales |
| Bill Ould | 1924 - 1924 | Wales |
| George Parsons | 1947 - 1947 | Wales |
| Rhys Patchell | 2013 - 2023 | Wales |
| Filo Paulo | 2012 - 2019 | Samoa |
| Tim Payne | 2004 - 2010 | England |
| Tom Pearson | 1891 - 1903 | Wales |
| Anton Peikrishvili | 2013 - 2016 | Georgia |
| Alan Phillips | 1979 - 1987 | Wales |
| William Phillips | 1881 - 1884 | Wales |
| Andy Powell | 2008 - 2012 | Wales |
| Jack Powell | 1923 - 1923 | Wales |
| Jack Powell | 1906 - 1906 | Wales |
| Ryan Powell | 2002 - 2002 | Wales |
| Wick Powell | 1920 - 1920 | Wales |
| Andries Pretorius | 2013 - 2013 | Wales |
| Alun Priday | 1958 - 1961 | Wales |
| Jack Prosser | 1921 - 1921 | Wales |
| Richie Pugh | 2005 - 2005 | Wales |
| Joe Pugsley | 1910 - 1911 | Wales |
| Craig Quinnell | 1995 - 2002 | Wales |
| James Ratti | 2024 - 2025 | Wales |
| Billy Raybould | 1967 - 1970 | Wales |
| Mike Rayer | 1991 - 1994 | Wales |
| Lou Reed | 2012 - 2013 | Wales |
| Brian Rees | 1967 - 1967 | Wales |
| Harry Rees | 1937 - 1938 | Wales |
| Lew Rees | 1933 - 1933 | Wales |
| Gwyn Richards | 1927 - 1927 | Wales |
| Idris Richards | 1925 - 1925 | Wales |
| Ken Richards | 1960 - 1961 | Wales |
| Maurice Richards | 1968 - 1969 | Wales |
| Arnold Rickards | 1924 - 1924 | Wales |
| Mark Ring | 1983 - 1991 | Wales |
| Jamie Ringer | 2001 - 2001 | Wales |
| Bill Roberts | 1929 - 1929 | Wales |
| Gareth Roberts | 1985 - 1987 | Wales |
| Jamie Roberts | 2008 - 2017 | Wales |
| John Roberts | 1927 - 1929 | Wales |
| Martin Roberts | 2008 - 2009 | Wales |
| Meirion Roberts | 1960 - 1963 | Wales |
| Harry Robinson | 2012 - 2013 | Wales |
| Ian Robinson | 1974 - 1974 | Wales |
| Jamie Robinson | 2001 - 2007 | Wales |
| Nicky Robinson | 2003 - 2009 | Wales |
| Bill Roche | 1920 - 1920 | Ireland |
| Peter Rogers | 1999 - 2000 | Wales |
| Bobby Ross | 1989 - 2003 | Canada |
| Mel Rosser | 1924 - 1924 | Wales |
| Gwyn Rowlands | 1953 - 1956 | Wales |
| Keith Rowlands | 1962 - 1965 | Wales |
| Mark Rowley | 1996 - 1997 | Wales |
| Stuart Roy | 1995 - 1995 | Wales |
| Reginald Schwarz | 1899 - 1901 | England |
| John Scott | 1978 - 1984 | England |
| Matthew Screech | 2021 - 2024 | Wales |
| Tal Selley | 2005 - 2005 | Wales |
| Heino Senekal | 1998 - 2007 | Namibia |
| Tom Shanklin | 2001 - 2010 | Wales |
| Terry Shaw | 1983 - 1983 | Wales |
| Joe Simpson | 1884 - 1884 | Wales |
| Semo Sititi | 1999 - 2009 | Samoa |
| Archie Skym | 1928 - 1935 | Wales |
| Richard Smith | 2000 - 2000 | Wales |
| Sidney Smith | 1884 - 1885 | Wales |
| Danny Southworth | 2025 - 2025 | Wales |
| Robin Sowden-Taylor | 2005 - 2009 | Wales |
| Billy Spiller | 1910 - 1913 | Wales |
| William Stadden | 1884 - 1890 | Wales |
| Andrew Stoddart | 1885 - 1893 | England |
| Anthony Sullivan | 2001 - 2001 | Wales |
| Ralph Sweet-Escott | 1891 - 1895 | Wales |
| John Tait | 1997 - 2002 | Canada |
| Luke Tait | 2005 - 2010 | Canada |
| Petru Tamba | 2012 - 2012 | Romania |
| Bill (WE) Tamplin | 1947 - 1948 | Wales |
| Haydn Tanner | 1935 - 1949 | Wales |
| Don Tarr | 1935 - 1935 | Wales |
| Hemi Taylor | 1994 - 1996 | Wales |
| Mike Teague | 1985 - 1993 | England |
| Alun Thomas | 1952 - 1955 | Wales |
| Ben Thomas | 2021 - 2025 | Wales |
| Billy Thomas | 1961 - 1963 | Wales |
| Gareth Thomas | 1995 - 2007 | Wales |
| Ivor Thomas | 1924 - 1924 | Wales |
| Justin Thomas | 1995 - 1997 | Wales |
| LC Thomas | 1885 - 1885 | Wales |
| Melbourne Thomas | 1919 - 1924 | Wales |
| Nathan Thomas | 1996 - 1998 | Wales |
| Thomas Rhys Thomas | 2005 - 2008 | Wales |
| Rory Thornton | 2017 - 2017 | Wales |
| Alec Timms | 1896 - 1905 | Scotland |
| Bunner Travers | 1937 - 1949 | Wales |
| Edward Treharne | 1881 - 1882 | Wales |
| Frank Trott | 1948 - 1949 | Wales |
| Bernard Turnbull | 1925 - 1930 | Wales |
| Maurice Turnbull | 1933 - 1933 | Wales |
| Dick Uzzell | 1963 - 1965 | Wales |
| Michel Van der Loos | 1975 - 1980 | Netherlands |
| Mike Voyle | 1996 - 2000 | Wales |
| John Wakeford | 1988 - 1988 | Wales |
| Nigel Walker | 1993 - 1998 | Wales |
| Thomas Wallace | 1920 - 1920 | Ireland |
| Nick Walne | 1999 - 1999 | Wales |
| Eddie Watkins | 1935 - 1939 | Wales |
| Ian Watkins | 1988 - 1989 | Wales |
| Mike Watkins | 1984 - 1984 | Wales |
| Stuart Watkins | 1964 - 1970 | Wales |
| Gordon Wells | 1955 - 1958 | Wales |
| Dai Westacott | 1906 - 1906 | Wales |
| Jeff Whitefoot | 1984 - 1987 | Wales |
| Andy Williams | 2003 - 2007 | Wales |
| Bleddyn Williams | 1947 - 1955 | Wales |
| Brynmor Williams | 1978 - 1981 | Wales |
| Cliff Williams | 1924 - 1925 | Wales |
| Derek (CD) Williams | 1955 - 1956 | Wales |
| Frank Williams | 1929 - 1933 | Wales |
| Gareth Williams | 2003 - 2010 | Wales |
| Jonnie Williams | 1906 - 1911 | Wales |
| Les Williams | 1947 - 1949 | Wales |
| Lloyd Williams | 1957 - 1962 | Wales |
| Lloyd Williams | 2011 - 2021 | Wales |
| Martyn Williams | 1996 - 2012 | Wales |
| Morgan Williams | 1999 - 2008 | Canada |
| Owain Williams | 1990 - 1990 | Wales |
| Owen Williams | 2013 - 2013 | Wales |
| Rhys Williams | 2000 - 2005 | Wales |
| Robbie Williams | 1912 - 1914 | Wales |
| Steve Williams | 1994 - 2003 | Wales |
| Teddy Williams | 2023 - 2025 | Wales |
| Tom Williams | 1882 - 1882 | Wales |
| Tomos Williams | 2018 - 2025 | Wales |
| William Williams | 1887 - 1890 | Wales |
| Rex Willis | 1950 - 1955 | Wales |
| Bobby Windsor | 1973 - 1979 | Wales |
| Bert Winfield | 1903 - 1908 | Wales |
| Cameron Winnett | 2024 - 2024 | Wales |
| Matthew Wintle | 1996 - 1996 | Wales |
| Richard Wintle | 1988 - 1988 | Wales |
| Wilf Wooller | 1933 - 1939 | Wales |
| John Yapp | 2005 - 2011 | Wales |
| Dai Young | 1987 - 2001 | Wales |
| George Young | 1886 - 1886 | Wales |
| Paul Young | 2003 - 2003 | Wales |
| Thomas Young | 2017 - 2021 | Wales |
Plus the following players have also turned out for Wales in rugby league…