| U18 Academy Welsh Internationals | ||
| Bancroft C | St. Julians | 2022 |
| Bayliss C | Ely Valley | 2018 |
| Breen J | Harlequins | 2017-18 |
| Butten H | Lampeter | 2016-18 |
| Coles J | Dinas Powys | 2015 |
| Colwill R | BFS Combine | 2019 |
| Davies C | Thomastown | 2022 |
| Davies I | Newquay | 2018 |
| Davies R | Llanbradach | 2016-17-18-19 |
| Flynn B | Pontrhydyfen | 2022 |
| Hill S | Porthcawl | 2015 |
| Holmes M | Kidwelly Town | 2016 |
| Hughes E | Harlequins | 2016-17 |
| Humphreys E | Troedyrhiw | 2016-17-18-19 |
| Lewis S | Blaenrhondda | 2022 |
| Lloyd A | Tenby | 2015 |
| Matthews B | Graig Merthyr | 2017 |
| Morgans C | Harlequins | 2016 |
| Mounty J | Gilfach Bargoed | 2022 |