| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| LM Balfour-Melville | 17y 333d | Scotland | v England | The Oval | 5 Feb 1872 | Details | |
| GH McAllan | 18y 13d | Ireland | v Scotland | Lansdowne Road | 15 Feb 1896 | Details | |
| M Urjukashvili | 18y 55d | Georgia | v Romania | Lansdowne Road | 18 Nov 1998 | Details | |
| F Lasserre | 18y 84d | France | v Ireland | Parc des Princes | 1 Jan 1914 | Details | |
| A Masi | 18y 149d | Italy | v Spain | L'Aquila | 26 Aug 1999 | Details | |
| TA Begbie | 18y 202d | Scotland | v Ireland | Belfast | 19 Feb 1881 | Details | |
| P Fernandez | 18y 205d | Argentina | v Brazil | Montevideo | 4 May 2013 | Details | |
| DH Bowen | 18y 226d | Wales | v England | Swansea | 16 Dec 1882 | Details | |
| MJ Brooks | 18y 269d | England | v Scotland | The Oval | 23 Feb 1874 | Details | |
| S Morse | 18y 275d | England | v Scotland | Glasgow | 3 Mar 1873 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| B Bernichan | 14y 328d | Netherlands | v Russia | Krasnodar | 17 Feb 2002 | Details | |
| IA Martin Goenaga | 16y 156d | Spain | v Romania | Bucharest | 19 Mar 2000 | Details | |
| D Reyes | 17y 3d | Uruguay | v Argentina | Montevideo | 27 Sep 1997 | Details | |
| M Urjukashvili | 17y 18d | Georgia | v Croatia | Tbilisi | 12 Oct 1997 | Details | |
| GM Jorge | 17y 349d | Argentina | v Brazil | Montevideo | 8 Oct 1989 | Details | |
| AJ Hartley | 18y 18d | South Africa | v Britain | Cape Town | 5 Sep 1891 | Details | |
| KG Macleod | 18y 22d | Scotland | v Ireland | Lansdowne Road | 24 Feb 1906 | Details | |
| TWJ Prydie | 18y 25d | Wales | v Italy | Millennium Stadium | 20 Mar 2010 | Details | |
| TF Paris | 18y 31d | Canada | v Belgium | Brussels | 6 Nov 2010 | Details | |
| DM Grant | 18y 36d | Scotland | v Wales | Inverleith | 4 Feb 1911 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| B Bernichan | 14y 314d | Netherlands | v Georgia | Tbilisi | 3 Feb 2002 | Details | |
| KG Macleod | 17y 289d | Scotland | v New Zealand | Inverleith | 18 Nov 1905 | Details | |
| C Dourthe | 18y 7d | France | v Romania | Bucharest | 27 Nov 1966 | Details | |
| NW Biggs | 18y 49d | Wales | v NZ Natives | Swansea | 22 Dec 1888 | Details | |
| MW Walter | 18y 51d | Scotland | v Ireland | Lansdowne Road | 24 Feb 1906 | Details | |
| AH Bailey | 18y 68d | Ireland | v Wales | Swansea | 10 Mar 1934 | Details | |
| GPS MacPherson | 18y 78d | Scotland | v France | Colombes | 2 Jan 1922 | Details | |
| P Dizabo | 18y 99d | France | v Australia | Colombes | 11 Jan 1948 | Details | |
| GV Stephenson | 18y 103d | Ireland | v France | Lansdowne Road | 3 Apr 1920 | Details | |
| H Martin | 18y 129d | France | v England | Richmond | 5 Jan 1907 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| P Vinci IV | 16y 176d | Italy | v Spain | Barcelona | 20 May 1929 | Details | |
| R Bredbury | 17y 141d | Hong Kong | v Thailand | Kuala Lumpur | 25 Oct 1994 | Details | |
| FS Hewitt | 17y 157d | Ireland | v Wales | Cardiff | 8 Mar 1924 | Details | |
| EB Vunipola | 17y 292d | Tonga | v Fiji | Nuku A'lofa | 24 Mar 1990 | Details | |
| GPS MacPherson | 18y 111d | Scotland | v Wales | Inverleith | 4 Feb 1922 | Details | |
| HCC Laird | 18y 134d | England | v Wales | Twickenham | 15 Jan 1927 | Details | |
| FMW Harvey | 18y 189d | Ireland | v Wales | Cardiff | 9 Mar 1907 | Details | |
| RA Lloyd | 18y 192d | Ireland | v England | Twickenham | 12 Feb 1910 | Details | |
| P Fernandez | 18y 202d | Argentina | v Chile | Montevideo | 1 May 2013 | Details | |
| PF Hawthorne | 18y 305d | Australia | v New Zealand | Wellington | 25 Aug 1962 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| JMT Quirke | 17y 229d | Ireland | v England | Twickenham | 10 Feb 1962 | Details | |
| RM Neill | 18y 185d | Scotland | v England | Blackheath | 9 Mar 1901 | Details | |
| M Rousie | 18y 190d | France | v Scotland | Murrayfield | 24 Jan 1931 | Details | |
| SPPBS Havea | 18y 292d | Tonga | v New Zealand | North Shore City | 16 Jun 2000 | Details | |
| T Menzel | 18y 330d | Germany | v Netherlands | Amsterdam | 27 Nov 2010 | Details | |
| H Tanner | 18y 346d | Wales | v New Zealand | Cardiff | 21 Dec 1935 | Details | |
| C Ramalli | 19y 57d | Australia | v New Zealand | Brisbane | 6 Aug 1938 | Details | |
| M Kvirikashvili | 19y 57d | Georgia | v Spain | Tbilisi | 22 Feb 2003 | Details | |
| GH Marsden | 19y 82d | England | v Wales | Gloucester | 6 Jan 1900 | Details | |
| M Parra | 19y 100d | France | v England | Stade de France | 23 Feb 2008 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| FE Mendez Azpillaga | 18y 86d | Argentina | v Ireland | Lansdowne Road | 27 Oct 1990 | Details | |
| RC Stafford | 18y 181d | England | v Wales | Twickenham | 20 Jan 1912 | Details | |
| JI Zapatero Ferreras | 18y 208d | Spain | v Italy | Perpignan | 21 Jun 1993 | Details | |
| WH Cerutti | 19y 121d | Australia | v NZ XV | Wellington | 5 Sep 1928 | Details | |
| FML Vunipola | 19y 178d | Tonga | v Fiji | Nuku A'lofa | 2 Jul 1988 | Details | |
| DA Kendrew | 19y 180d | England | v Wales | Cardiff | 18 Jan 1930 | Details | |
| DM Bain | 19y 189d | Scotland | v England | Twickenham | 18 Mar 1911 | Details | |
| DS Parker | 19y 213d | Wales | v Ireland | Cardiff | 8 Mar 1924 | Details | |
| IM Moffat-Pender | 19y 215d | Scotland | v England | Inverleith | 21 Mar 1914 | Details | |
| WC Francis | 19y 221d | New Zealand | v Australia | Dunedin | 13 Sep 1913 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| A Ross | 19y 54d | Scotland | v France | Paris | 1 Jan 1924 | Details | |
| L Ghvaberidze | 19y 146d | Georgia | v Portugal | Tbilisi | 14 Feb 2004 | Details | |
| WP Collopy | 19y 241d | Ireland | v France | Parc des Princes | 1 Jan 1914 | Details | |
| T Fujita | 19y 251d | Japan | v Netherlands | Hilversum | 4 Oct 1980 | Details | |
| AF Maynard | 19y 300d | England | v Wales | Twickenham | 17 Jan 1914 | Details | |
| P Paoletti | 19y 337d | Italy | v Portugal | Lisbon | 2 Apr 1972 | Details | |
| S Iglesias | 19y 340d | Argentina | v Chile | Montevideo | 1 May 2013 | Details | |
| B Zebega Suman | 19y 358d | Romania | v Czech Rep | Bucharest | 14 Feb 2004 | Details | |
| L Avigo | 20y 55d | Italy | v France | Nantes | 29 Mar 1959 | Details | |
| KD Mullen | 20y 60d | Ireland | v France | Lansdowne Road | 25 Jan 1947 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| S Tupuola | 14y 177d | Samoa | v Fiji | Suva | 21 Aug 1982 | Details | |
| M Garcia | 17y 290d | Spain | v Uruguay | Montevideo | 1 Sep 2001 | Details | |
| FE Hutchinson | 18y 253d | Australia | v New Zealand | Wellington | 5 Sep 1936 | Details | |
| M Legrain | 18y 279d | France | v Ireland | Lansdowne Road | 20 Mar 1909 | Details | |
| B Aka | 18y 280d | Ivory Coast | v Tunisia | Tunis | 26 Oct 1993 | Details | |
| A Iachetti | 18y 319d | Argentina | v Uruguay | Asuncion | 21 Sep 1975 | Details | |
| M Trippitelli | 18y 338d | Italy | v Poland | Sochacewz | 30 Sep 1979 | Details | |
| HW Bryant | 18y 340d | Australia | v NZ XV | Auckland | 19 Sep 1925 | Details | |
| SM Kalamafoni | 19y 7d | Tonga | v Australia A | Sydney | 25 May 2007 | Details | |
| AR Ross | 19y 22d | Scotland | v Wales | Inverleith | 4 Feb 1911 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| AB Burge | 18y 67d | Australia | v New Zealand | Sydney | 10 Aug 1907 | Details | |
| C Raducanu | 18y 66d | Romania | v Italy | L'Aquila | 7 Dec 1985 | Details | |
| A Manta | 18y 317d | Romania | v Belgium | Bucharest | 19 Apr 1996 | Details | |
| V Doja | 18y 340d | Romania | v France | Bucharest | 22 Jun 1991 | Details | |
| ME Loane | 18y 347d | Australia | v Tonga | Sydney | 23 Jun 1973 | Details | |
| EN Greatorex | 19y 146d | Australia | v NZ Maori | Sydney | 25 Jun 1923 | Details | |
| F Sintich | 19y 148d | Italy | v Cook Islands | Avarua | 6 Jul 1980 | Details | |
| JMB Scott | 19y 161d | Scotland | v England | Blackheath | 16 Mar 1907 | Details | |
| NH Fender | 19y 187d | Wales | v Ireland | Swansea | 8 Mar 1930 | Details | |
| E dos Santos | 19y 195d | Portugal | v Chile | Santiago | 17 Nov 2012 | Details |
| Player | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| S Tupuola | 14y 97d | Samoa | v Fiji | Apia | 2 Jun 1982 | Details | |
| HW Bryant | 18y 242d | Australia | v NZ XV | Sydney | 13 Jun 1925 | Details | |
| SM Parisse | 18y 269d | Italy | v New Zealand | Hamilton | 8 Jun 2002 | Details | |
| ST Latu | 18y 320d | Tonga | v Fiji | Suva | 7 Jul 1984 | Details | |
| V Korshunov | 19y 80d | Russia | v Netherlands | Moscow | 1 Jun 2002 | Details | |
| A Lijoi | 19y 125d | Italy | v Poland | Warsaw | 23 Oct 1977 | Details | |
| PJ Camerlinckx | 19y 146d | Argentina | v Brazil | Montevideo | 8 Oct 1989 | Details | |
| JA Ford | 19y 214d | Australia | v NZ XV | Auckland | 19 Sep 1925 | Details | |
| C Raducanu | 19y 233d | Romania | v Zimbabwe | Auckland | 23 May 1987 | Details | |
| N Johnson | 19y 239d | USA | v Ireland | Santa Clara | 31 May 2009 | Details |
| Player | Pos | Age | Team | Opposition | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|---|
| JP Horta | (F) | 14y 326d | Uruguay | v Spain | Montevideo | 1 Sep 2001 | Details | |
| B Bernichan | (H) | 14y 363d | Netherlands | v Portugal | Amsterdam | 24 Mar 2002 | Details | |
| IA Martin Goenaga | (W) | 16y 141d | Spain | v Georgia | Madrid | 4 Mar 2000 | Details | |
| G Chiriac | (F) | 16y 172d | Romania | v Belgium | Bucharest | 19 Apr 1996 | Details | |
| R Stanca | (SH) | 16y 186d | Romania | v France | Lourdes | 22 Oct 1997 | Details | |
| GM Jorge | (W) | 17y 353d | Argentina | v Paraguay | Montevideo | 12 Oct 1989 | Details | |
| I Chkhikvadze | (W) | 18y 38d | Georgia | v Chile | Tbilisi | 12 Nov 2005 | Details | |
| TF Paris | (W) | 18y 52d | Canada | v Portugal | Lisbon | 27 Nov 2010 | Details | |
| JD O'Connor | (FB) | 18y 126d | Australia | v Italy | Padova | 8 Nov 2008 | Details | |
| M Timoshchuk | (C) | 18y 153d | Ukraine | v Russia | Kharkov | 27 May 2006 | Details |
Only the player's first appearance listed; Only includes matches where the player starts in the respective position, and excludes matches as a substitute.
| Records include the following current or recent matches: |
|
Guyana v Barbados at Georgetown, NACRA Rugby, May 18, 2013 [19-17 FT] |
|
Bermuda v USA South at Hamilton, NACRA Rugby, May 18, 2013 [14-22 FT] |
|
Philippines v United Arab Emirates at Manila, Asian 5 Nations - Top 5, May 18, 2013 [24-8 FT] |
|
Korea v Hong Kong at Ansan, Asian 5 Nations - Top 5, May 18, 2013 [43-22 FT] |
