| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| AP Winnan | 18y 179d | Saracens | Watford | 23 Sep 2001 | Details | |
| MPJ Haley | 18y 296d | Sale Sharks | Northampton | 20 Apr 2013 | Details | |
| TDW Homer | 18y 355d | London Irish | Reading | 22 Mar 2009 | Details | |
| ME Stephenson | 19y 236d | Newcastle | Newcastle | 21 May 2000 | Details | |
| IR Balshaw | 19y 242d | Bath Rugby | Bath | 12 Dec 1998 | Details | |
| DPC Thompson | 19y 273d | Saracens | Northampton | 8 Nov 1997 | Details | |
| AKC Watson | 19y 305d | Bath Rugby | Northampton | 28 Dec 2013 | Details | |
| TW Bell | 19y 322d | Wasps | Northampton | 28 Sep 2012 | Details | |
| FS Burns | 19y 339d | Gloucester | Northampton | 17 Apr 2010 | Details | |
| BP Gollings | 19y 342d | Harlequins | The Stoop | 19 Apr 2000 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| DJ Doherty | 18y 296d | Leeds | Leeds | 20 Nov 2005 | Details | |
| OJ Smith | 19y 60d | Leicester | Northampton | 13 Oct 2001 | Details | |
| JBA Joseph | 19y 189d | London Irish | Northampton | 26 Nov 2010 | Details | |
| MJ Garvey | 19y 195d | Gloucester | Gloucester | 2 Nov 2002 | Details | |
| SM Hanley | 19y 205d | Sale Sharks | Sale | 2 Jan 1999 | Details | |
| MJM Tait | 19y 223d | Newcastle | Northampton | 17 Sep 2005 | Details | |
| C Sharples | 19y 230d | Gloucester | Northampton | 4 Apr 2009 | Details | |
| S Stegmann | 19y 252d | Harlequins | Northampton | 20 Dec 2008 | Details | |
| SFD Marsden | 19y 313d | Bristol | Northampton | 25 Nov 2000 | Details | |
| RG Thirlby | 19y 341d | Saracens | Northampton | 6 Feb 1999 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| J Turner-Hall | 18y 303d | Harlequins | The Stoop | 4 Nov 2006 | Details | |
| JBA Joseph | 18y 352d | London Irish | Reading | 8 May 2010 | Details | |
| CD Bell | 19y 19d | Harlequins | The Stoop | 26 Jan 2002 | Details | |
| WJS Addison | 19y 34d | Sale Sharks | Stockport | 23 Sep 2011 | Details | |
| PJ Devlin | 19y 35d | Sale Sharks | Northampton | 25 Mar 2000 | Details | |
| AJ Powell | 19y 48d | Saracens | Northampton | 18 Feb 2006 | Details | |
| ID Thornley | 19y 69d | Sale Sharks | Stockport | 19 Nov 2010 | Details | |
| DJM Waldouck | 19y 87d | Wasps | Northampton | 22 Dec 2006 | Details | |
| EF Daly | 19y 168d | Wasps | Northampton | 24 Mar 2012 | Details | |
| OJ Smith | 19y 193d | Leicester | Leicester | 23 Feb 2002 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| OA Farrell | 19y 141d | Saracens | Northampton | 12 Feb 2011 | Details | |
| AJ Goode | 19y 161d | Leicester | Northampton | 11 Sep 1999 | Details | |
| DJ Cipriani | 19y 164d | Wasps | Wycombe | 15 Apr 2007 | Details | |
| JP Wilkinson | 19y 174d | Newcastle | Newcastle | 15 Nov 1998 | Details | |
| PR Broadfoot | 19y 201d | Leicester | Leicester | 25 Sep 2004 | Details | |
| GT Ford | 19y 232d | Leicester | Leicester | 3 Nov 2012 | Details | |
| OJ Barkley | 19y 284d | Bath Rugby | Northampton | 8 Sep 2001 | Details | |
| CC Hodgson | 20y 104d | Sale Sharks | Northampton | 24 Feb 2001 | Details | |
| SJJ Geraghty | 20y 106d | London Irish | Reading | 26 Nov 2006 | Details | |
| RG Mills | 20y 255d | Gloucester | Northampton | 9 Feb 2013 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| KP Campbell | 19y 90d | London Irish | The Avenue | 24 Oct 1998 | Details | |
| BT Spencer | 19y 118d | Saracens | Northampton | 26 Nov 2011 | Details | |
| HC Charlton | 19y 153d | Newcastle | Northampton | 27 Mar 1999 | Details | |
| DI Lewis | 19y 214d | Gloucester | Gloucester | 29 Nov 2008 | Details | |
| HA Ellis | 19y 282d | Leicester | Leicester | 23 Feb 2002 | Details | |
| GJ Cooper | 19y 359d | Bath Rugby | Northampton | 1 May 1999 | Details | |
| NS Duncombe | 20y 5d | Harlequins | The Stoop | 26 Jan 2002 | Details | |
| JS Grindal | 20y 15d | Leicester | Leicester | 2 Sep 2000 | Details | |
| MLR Young | 20y 59d | Newcastle | Northampton | 28 Feb 2009 | Details | |
| REP Wigglesworth | 20y 95d | Sale Sharks | Stockport | 12 Sep 2003 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| DL Flatman | 19y 16d | Saracens | Northampton | 6 Feb 1999 | Details | |
| S Phillips | 19y 153d | Saracens | Watford | 3 Dec 2000 | Details | |
| HM Thomas | 19y 154d | Sale Sharks | Northampton | 2 Apr 2011 | Details | |
| DG Wilson | 20y 6d | Newcastle | Northampton | 15 Apr 2005 | Details | |
| K Brookes | 20y 62d | Newcastle | Northampton | 30 Oct 2010 | Details | |
| RA Harrison | 20y 88d | Sale Sharks | Salford | 30 Nov 2012 | Details | |
| G Powell | 20y 98d | Richmond | Reading | 8 May 1999 | Details | |
| JWG Marler | 20y 178d | Harlequins | Northampton | 1 Jan 2011 | Details | |
| LA Imiolek | 20y 193d | Sale Sharks | Northampton | 2 Apr 2011 | Details | |
| SR Wilson | 20y 193d | Newcastle | Newcastle | 21 Sep 2014 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| MJ Thompson | 19y 151d | Newcastle | Northampton | 12 May 2002 | Details | |
| AJ Titterrell | 20y 45d | Sale Sharks | Northampton | 24 Feb 2001 | Details | |
| JP Roddam | 20y 49d | Harlequins | The Stoop | 26 Jan 2002 | Details | |
| JE Parkes | 20y 121d | Saracens | Northampton | 31 Mar 2001 | Details | |
| DJ Paice | 20y 355d | London Irish | Northampton | 13 Nov 2004 | Details | |
| C Balshen | 21y 9d | Newcastle | Northampton | 18 Nov 2000 | Details | |
| TWJ Taylor | 21y 19d | Sale Sharks | Salford | 30 Nov 2012 | Details | |
| MJ Kwisiuk | 21y 81d | Bedford | Bedford | 4 Dec 1999 | Details | |
| LA Cowan-Dickie | 21y 147d | Exeter | Northampton | 14 Nov 2014 | Details | |
| GS Chuter | 21y 309d | Saracens | Watford | 14 May 1998 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| CD Green | 19y 108d | Leicester | Leicester | 31 Oct 2009 | Details | |
| SW Borthwick | 19y 201d | Bath Rugby | Northampton | 1 May 1999 | Details | |
| ERB Stooke | 20y 11d | Gloucester | Gloucester | 21 Sep 2013 | Details | |
| AD Buist | 20y 95d | Newcastle | Newcastle | 28 Nov 2004 | Details | |
| AM Jones | 20y 238d | Harlequins | Northampton | 6 Sep 2000 | Details | |
| SJ Hooper | 20y 314d | Saracens | Watford | 28 Sep 2002 | Details | |
| GR Merrick | 20y 344d | Harlequins | The Stoop | 13 Sep 2013 | Details | |
| RS Beattie | 21y 0d | Newcastle | Newcastle | 15 Nov 1998 | Details | |
| TE Collier | 21y 88d | W Hartlepool | Northampton | 23 Jan 1999 | Details | |
| JT Rule | 21y 130d | Newcastle | Northampton | 26 Dec 1999 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| TRJ Lawy | 19y 49d | Saracens | Northampton | 27 Mar 2004 | Details | |
| RM Devonshire | 19y 129d | Newcastle | Newcastle | 21 May 2000 | Details | |
| BM Lloyd | 19y 137d | Sale Sharks | Northampton | 21 Feb 2004 | Details | |
| JP Gaskell | 19y 157d | Sale Sharks | Northampton | 24 Oct 2009 | Details | |
| WA Welch | 19y 238d | Newcastle | Newcastle | 27 Nov 2009 | Details | |
| WJ Skinner | 19y 259d | Leicester | Leicester | 25 Oct 2003 | Details | |
| CA Fearns | 19y 290d | Sale Sharks | Northampton | 14 Mar 2009 | Details | |
| R Peacey | 19y 302d | Saracens | Watford | 28 Sep 2002 | Details | |
| AJ Saull | 20y 0d | Saracens | Watford | 27 Sep 2008 | Details | |
| A Sanderson | 20y 10d | Sale Sharks | Sale | 17 Oct 1999 | Details |
| Player | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|
| BT Russell | 19y 107d | Saracens | Northampton | 27 Apr 2002 | Details | |
| JS Crane | 19y 170d | Leeds | Leeds | 20 Nov 2005 | Details | |
| VML Vunipola | 19y 330d | Wasps | Northampton | 28 Sep 2012 | Details | |
| SF Jones | 20y 100d | Wasps | Northampton | 24 Mar 2012 | Details | |
| JDJ Brownrigg | 20y 283d | Bristol | Northampton | 14 Mar 1998 | Details | |
| MB Kvesic | 20y 308d | Worcester | Worcester | 16 Feb 2013 | Details | |
| A Sanderson | 20y 338d | Sale Sharks | Sale | 9 Sep 2000 | Details | |
| RS Beattie | 21y 132d | Newcastle | Northampton | 27 Mar 1999 | Details | |
| JPR Worsley | 21y 146d | Wasps | Northampton | 7 Nov 1998 | Details | |
| JE Hart | 21y 191d | Wasps | Northampton | 27 Sep 2003 | Details |
| Player | Pos | Age | Team | Ground | Date | Match | |
|---|---|---|---|---|---|---|---|
| DJ Doherty | (W) | 17y 95d | Leeds | Leeds | 2 May 2004 | Details | |
| JS Hoyle | (C) | 18y 192d | Sale Sharks | Stockport | 12 Sep 2003 | Details | |
| JD Simpson-Daniel | (C) | 18y 200d | Gloucester | Northampton | 16 Dec 2000 | Details | |
| DAS Sisi | (F) | 18y 224d | London Irish | Northampton | 17 Sep 2011 | Details | |
| JS Elphick | (W) | 18y 271d | Bedford | Bedford | 4 Dec 1999 | Details | |
| SG James | (C) | 18y 291d | Sale Sharks | Northampton | 20 Apr 2013 | Details | |
| S Phillips | (P) | 18y 319d | Saracens | Watford | 17 May 2000 | Details | |
| DJ Robson | (SH) | 18y 349d | Gloucester | Northampton | 26 Feb 2011 | Details | |
| J Forster | (P) | 18y 357d | Gloucester | Northampton | 11 Mar 2006 | Details | |
| GR Maclure | (C) | 19y 3d | W Hartlepool | Hartlepool | 20 Dec 1998 | 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: |
|
Sale Sharks v Northampton Saints at Salford, Aviva Premiership Round 13, Jan 10, 2015 [20-7 FT] |
|
Harlequins v Northampton Saints at Twickenham, Aviva Premiership Round 11, Dec 27, 2014 [25-30 FT] |
|
London Welsh v Northampton Saints at Oxford, Aviva Premiership Round 9, Nov 30, 2014 [14-43 FT] |
