The 1991 AFL reserves season was the 72nd season of the AFL reserve grade competition, the Australian rules football competition operating as the second-tier competition to the Australian Football League (AFL).

The premiership was won by the Brisbane Bears after they defeated in the 1991 AFL reserves grand final, held as a curtain-raiser to the 1991 AFL Grand Final at Waverley Park on 28 September. This was the first time a non-Victorian club had won an AFL premiership in any grade, and the Bears' only premiership before the club merged with at the end of the 1996 season.

Ladder + Team Qualification 1 22 17 5 0 2705 2027 133.45 60 Finals series 2 22 15 7 0 2923 2314 126.32 60 3 Brisbane Bears (P) 22 14 8 0 2488 2366 105.16 56 4 22 13 9 0 2625 2183 120.25 52 5 22 13 9 0 2545 2346 108.48 52 6 22 12 10 0 2347 2042 114.94 48 7 22 12 10 0 2394 2161 110.78 48 8 22 11 11 0 2284 2183 106.83 44 9 22 10 12 0 2293 2456 93.36 40 10 22 10 12 0 2025 2425 83.51 40 11 22 6 18 0 1984 2617 75.81 24 12 22 5 17 0 1859 2588 71.83 20 13 22 5 17 0 1972 2781 70.91 20

Finals series Semi-finals

Preliminary final

Grand Final

References