| 1991 Trade for Adrian Fletcher | ||
| Geelong | #9 (O'Reilly - 146 games) | 104 XG |
| St Kilda | Fletcher (22 games) | 14 XG |
| 1991 Trade for Paul Harding | ||
| St Kilda | #12 (Malone - 0 games) | 83 XG |
| West Coast | Harding (43 games) | 24 XG |
| 1991 Trade for Paul Abbott and Dale Fleming | ||
| Fitzroy | Abbott (26 games) + Fleming (13 games) | 31 XG |
| Hawthorn | #15 (O'Dwyer - 0 games) | 71 XG |
| 1991 Trade for Stevan Jackson | ||
| Richmond | Jackson (21 games) | 14 XG |
| West Coast | #16 (Metropolis - 114 games) + #29 (Connell - 99 games) | 118 XG |
| 1991 Trade for Tony Campbell and Ricky Jackson | ||
| Melbourne | #19 (Gilbert - 39 games) + #32 (Berry - 0 games) | 107 XG |
| Western Bulldogs | Campbell (43 games) + Jackson (0 games) | 42 XG |
| 1991 Trade for Lawrence Bingham | ||
| Hawthorn | #22 (Crawshay - 19 games) | 58 XG |
| St Kilda | Bingham (22 games) | 18 XG |
| 1991 Trade for Geoff Miles | ||
| Geelong | Miles (20 games) | 22 XG |
| West Coast | #24 (Morphett - 0 games) | 56 XG |
| 1991 Trade for Gary Pert | ||
| Collingwood | Pert (70 games) | 23 XG |
| Fitzroy | #7 (Guard - 68 games) + #20 (Cook - 43 games) | 189 XG |
| 1991 Trade for Gavin Rose | ||
| Collingwood | #30 (Purcell - 0 games) | 51 XG |
| Sydney | Rose (55 games) | 23 XG |
| 1991 Trade for Tony Woods | ||
| Collingwood | Woods (18 games) | 18 XG |
| Fitzroy | #33 (Morrish - 20 games) | 44 XG |
| 1991 Trade for Russell Evans | ||
| Essendon | Evans (0 games) | 0 XG |
| North Melbourne | #34 (Leng - 0 games) | 42 XG |
| 1991 Trade for Darren Flanigan | ||
| Geelong | #35 (Donald - 0 games) | 40 XG |
| St Kilda | Flanigan (8 games) | 22 XG |
| 1991 Trade for John Barnes and Sean Denham | ||
| Essendon | Denham (142 games) + #37 (O'Connor - 87 games) | 58 XG |
| Geelong | Barnes (144 games) | 18 XG |
| 1991 Trade for Paul Gow | ||
| West Coast | Gow (0 games) | 23 XG |
| Western Bulldogs | #38 (Rundle - 0 games) | 35 XG |
| 1991 Trade for Steven O'Dwyer and Michael Pickering | ||
| Melbourne | Pickering (15 games) + #3 (Kowal - 105 games) | 199 XG |
| Richmond | O'Dwyer (5 games) + #49 (Hawes - 0 games) | 38 XG |
| 1991 Trade for Rod Owen | ||
| Brisbane | Owen (9 games) | 21 XG |
| Melbourne | #40 (White - 0 games) | 30 XG |
| 1991 Trade for Brad Boyd | ||
| Collingwood | #41 (Curley - 118 games) | 26 XG |
| Fitzroy | Boyd (70 games) | 8 XG |
| 1991 Trade for Todd Breman | ||
| Richmond | Breman (25 games) | 42 XG |
| West Coast | #42 (Freeman - 0 games) | 21 XG |
| 1991 Trade for Craig O'Brien | ||
| Essendon | #48 (Mitchell - 0 games) | 16 XG |
| St Kilda | O'Brien (52 games) | 17 XG |
| 1991 Trade for Tim Bourke, Colin Gadsden and John McNamara | ||
| Geelong | Gadsden (0 games) + McNamara (0 games) | 6 XG |
| North Melbourne | Bourke (0 games) + #50 (Hando - 0 games) | 34 XG |
| 1991 Trade for Trent Nichols | ||
| Richmond | #51 (Brooker - 0 games) | 15 XG |
| West Coast | Nichols (4 games) | 23 XG |
| 1991 Trade for Russell Jeffrey | ||
| Brisbane | Jeffrey (8 games) | 23 XG |
| St Kilda | #53 (Gray - 0 games) | 15 XG |
| 1991 Trade for Earl Spalding | ||
| Carlton | Spalding (102 games) | 23 XG |
| Melbourne | #5 (Norrish - 148 games) + #31 (Kilmartin - 10 games) | 168 XG |
| 1991 Trade for David Regan | ||
| Essendon | #63 (Bower - 5 games) | 11 XG |
| West Coast | Regan (0 games) | 3 XG |
| 1991 Trade for Jason Taylor | ||
| Fitzroy | #64 (Barrett - 4 games) | 12 XG |
| Hawthorn | Taylor (80 games) | 29 XG |
| 1991 Trade for Bernard Toohey and Stuart Wigney | ||
| Sydney | Wigney (1 games) + #6 (Burton - 0 games) | 148 XG |
| Western Bulldogs | Toohey (40 games) + #67 (Ellen - 65 games) | 36 XG |
| 1991 Trade for Darren Morgan | ||
| Sydney | #68 (Bell - 0 games) | 15 XG |
| Western Bulldogs | Morgan (0 games) | 23 XG |
| 1991 Trade for Shane Strempel | ||
| Brisbane | #71 (Chambers - 0 games) | 5 XG |
| Essendon | Strempel (0 games) | 23 XG |
| 1991 Trade for Darren Kappler, Ashley Matthews, Simon Minton-Connell, Peter Sartori and Greg Williams | ||
| Carlton | Williams (109 games) + #28 (O'Keefe - 0 games) + #54 (Snooks - 0 games) + #78 (Dickson - 0 games) + #109 (-) | 91 XG |
| Fitzroy | Matthews (6 games) + Sartori (23 games) | 37 XG |
| Sydney | Kappler (59 games) + Minton-Connell (46 games) | 46 XG |
| 1991 Trade for Colin Alexander, Brad Hardie, Brendon Retzlaff and Brad Rowe | ||
| Brisbane | Alexander (5 games) + Retzlaff (15 games) | 37 XG |
| Collingwood | Hardie (2 games) + Rowe (51 games) + #81 (Barrows - 0 games) | 44 XG |
| 1991 Trade for Ron De Iulio and Richard Dennis | ||
| Carlton | De Iulio (104 games) | 3 XG |
| North Melbourne | Dennis (13 games) | 23 XG |