104th ABA National Championships
Location Royal Albert Hall, London
Year 1991
| Weight Category | Champion | Finalist |
| Under 48 kg | Peter Culshaw (Huyton ABC) | A. Mooney (Sydney Street ABC) |
| Under 51 kg | Paul Ingle (Scarborough ABC) | Michael Horobin (St Pancras ABC) |
| Under 54 kg | David Hardie (Gallowgate ABC) | M. Gibbons (South Bank ABC) |
| Under 57 kg | John Irwin (Tom Hill ABC) | Mark Bowers (Pinewood Starr ABC) |
| Under 60 kg | Paul Ramsey (Small Health ABC) | Patrick Gallagher (Angel ABC) |
| Under 64 kg | Jason Matthews (Aberbargoed BC) | George Smith (Canvey Island ABC) |
| Under 67 kg | Joe Calzaghe (Newbridge ABC) | Trevor French (Royal Navy) |
| Under 71 kg | Timothy Taylor (Newco Repton ABC) | L. Ferrie (Triumph ABC) |
| Under 75 kg | Mark Edwards (Royal Navy) | Eric Noi (Moss Side ABC) |
| Under 81 kg | Anthony Todd (Darlington ABC) | Geoff Donaldson (Bakingstoke ABC) |
| Under 91 kg | Paul Lawson (Newco Repton ABC) | David Roberts (Willaston ABC) |
| Over 91 kg | Kevin McCormack (Coed Eva BC) | Gareth Evans (Leith Victoria BC) |
