| 1921 All-Ireland Senior Football Championship final | |
| Event: | 1921 All-Ireland Senior Football Championship |
| Team1score: | 1–9 (12) |
| Team2score: | 0–2 (2) |
| Date: | 17 June 1923 |
| Stadium: | Croke Park |
| City: | Dublin |
| Referee: | Willie Walsh (Waterford) |
| Attendance: | 16,000 |
| Weather: | fine |
| Previous: | 1920 |
| Next: | 1922 |
The 1921 All-Ireland Senior Football Championship final was the 34th All-Ireland Final and the deciding match of the 1921 All-Ireland Senior Football Championship, an inter-county Gaelic football tournament for the top teams in Ireland.
Dublin led 0–4 to 0–1 at half-time, and a late Bill Fitzsimmons goal gave them a comprehensive victory.[1]
It was the first of three All-Ireland football titles won by Dublin in the 1920s, which made them joint "team of the decade" with Kerry, who also won three.[2]