| Competition: | SANFL |
| Match Type: | Grand Final |
| Home: | |
| Home Abbr: | NOR |
| Away: | |
| Away Abbr: | PTA |
| Home Qtr1: | 0.4 (4) |
| Home Qtr2: | 1.5 (11) |
| Home Qtr3: | 2.6 (18) |
| Home Qtr4: | 3.6 (24) |
| Away Qtr1: | 3.1 (19) |
| Away Qtr2: | 4.3 (27) |
| Away Qtr3: | 4.6 (30) |
| Away Qtr4: | 4.8 (32) |
| Home Score: | 3.6 (24) |
| Away Score: | 4.8 (32) |
| Date: | Saturday, 8 October (2:10 pm) |
| Stadium: | Adelaide Oval |
| Attendance: | 34,800 |
| Umpire: | Mr Haven |
| Kick End: | Scoreboard End |
| Bog: | Peter Bampton[1] |
| Last: | 1920 |
| Next: | 1922 |
The 1921 SAFL Grand Final was an Australian rules football game contested between the Norwood Football Club and the Port Adelaide Football Club, held at the Adelaide Oval in Adelaide on 8 October 1921. It was the 23rd annual Grand Final of the South Australian Football League, staged to determine the premiers for the 1921 SAFL season. The match, attended by 34,000 spectators, was won by Port Adelaide by a margin of 8 points, marking the club's ninth premiership victory.[2]
Port Adelaide's team was not finalised until just before the game with Taylor, Lloyd and Mayne left out of the squad of 21 and Eric Dewar replacing Maurice Allingham.