1943 National Junior Championships
Date May 1, 1943
Year 1943
| Weight Category | Champion | Finalist |
| Class A kg | H S Whale (Hendon Youth Club) | J Lyons (Lowe House Boy' Club) |
| kg | M T W Forrester (West Ham Boys' ABC) | H Dawkins (Battersea ABC) |
| kg | K C Diston (Hendon Youth Club) | P East (Slough Centre ABC) |
| kg | P Brander (Battersea and Basingstoke ABC) | P G Marr (St Francis Xaviers ABC) |
| kg | R Turpin (Leamington Boys' Club) | H King (Earlsfield ABC) |
| kg | J Williamson (Manchester County ABC) | R Bebbington (Fairbairn House ABC) |
| kg | F S Lovegrove (Fitzroy Lodge and Lynn ABC) | M S Staff (De Haviland ABC) |
| Class B kg | G Mills (Charlemont Evening Institute ABC) | F Weitzensang (Oxford and St George's ABC) |
| kg | T Rooke (Brighton, Hove and Portslade ABC) | R C Bates (Glacier ABC) |
| kg | H A McMurdie (Hendon Youth Club) | H Shord (Repton and Oxford House ABC) |
| kg | E Thomas (Merthyr Ex-Service Mens ABC) | W V Williams (Aylesbury and District ABC) |
| kg | J Hughes (Lowe House Boys' Club) | B J Dowling (Austin ABC) |
| kg | J Molloy (Lowe House Boys' Club) | S Charlesworth (Fitzroy Lodge and Lynn ABC) |
| kg | S Davis (Fitzroy Lodge and Lynn ABC) | A Mason (Grundy AC) |
