ABA National Junior Championships 1943
Date May 1, 1943
Year 1943
| Weight Category | Champion | Finalist |
| Class A kg | H S Whale (Hendon Youth Club) | |
| kg | M T W Forrester (West Ham Boys' ABC) | |
| kg | K C Diston (Hendon Youth Club) | |
| kg | P Brander (Battersea and Basingstoke ABC) | |
| kg | R Turpin (Leamington Boys' Club) | |
| kg | J Williamson (Manchester County ABC) | |
| kg | F S Lovegrove (Fitzroy Lodge and Lynn ABC) | |
| Class B kg | G Mills (Charlemont Evening Institute ABC) | |
| kg | T Rooke (Brighton, Hove and Portslade ABC) | |
| kg | H A McMurdie (Hendon Youth Club) | |
| kg | E Thomas (Merthyr Ex-Service Mens ABC) | |
| kg | J Hughes (Lowe House Boys' Club) | |
| kg | J Molloy (Lowe House Boys' Club) | |
| kg | S Davis (Fitzroy Lodge and Lynn ABC) |
