1966 All-Ireland Senior Football Championship
The 1966 All-Ireland Senior Football Championship was the 80th staging of the All-Ireland Senior Football Championship, the Gaelic Athletic Association's premier inter-county Gaelic football tournament. The championship began on 1 May 1966 and ended on 25 September 1966.
Galway entered the championship as the defending champions in search of a third successive championship title.
On 25 September 1966, Galway won the championship following a 1-10 to 0-7 defeat of Meath in the All-Ireland final. This was their seventh All-Ireland title overall and their third championship in succession.
Fermanagh's P. T. Treacy was the championship's top scorer with 4-12. Galway's Mattie McDonagh was the choice for Texaco Footballer of the Year.Normal system back with just 1 Quarter-final vs 2 Semi-finals as usual.Results
Quarter-final
Semi-finals
FinalFirst round
Quarter-finals
Semi-finals
FinalQuarter-finals
Semi-finals
FinalPreliminary round
Quarter-finals
Semi-finals
FinalSemi-finals
FinalMiscellaneous
- Cork stop Kerry to 9 Munster titles in a row in the Munster final.
- The All Ireland semi-final between Meath and Down was their first ever championship meeting.
- Galway were All Ireland Champions for the third year in a row and Connacht champions for the fourth year in a row.
Top scorers
;Overall
| Rank | Player | County | Tally | Total | Matches | Average |
| 1 | P. T. Treacy | Fermanagh | 4-12 | 24 | 3 | 8.00 |
| 2 | Michael McLoone | Donegal | 3-14 | 23 | 3 | 7.66 |
| 3 | Cyril Dunne | Galway | 1-18 | 21 | 4 | 5.25 |
| 3 | Jack Donnelly | Kildare | 0-21 | 21 | 4 | 5.25 |
| 5 | Mick Ruane | Mayo | 4-4 | 16 | 3 | 5.33 |
| 5 | Pat Dunny | Kildare | 4-4 | 16 | 3 | 5.33 |
| 5 | Con O'Sullivan | Cork | 2-10 | 16 | 4 | 4.00 |
| 5 | Mickey Kearns | Sligo | 1-13 | 16 | 2 | 8.00 |
| 9 | John Timmons | Dublin | 2-9 | 15 | 2 | 7.50 |
| 9 | Seán O'Neill | Down | 2-9 | 15 | 4 | 3.75 |
;Single game
| Rank | Player | County | Tally | Total | Opposition |
| 1 | Tony Brennan | Meath | 3-2 | 11 | Wexford |
| 1 | Pat Dunny | Kildare | 3-2 | 11 | Dublin |
| 3 | Mick Ruane | Mayo | 3-1 | 10 | Sligo |
| 3 | Con O'Sullivan | Cork | 2-4 | 10 | Limerick |
| 3 | P. T. Treacy | Fermanagh | 2-4 | 10 | Monaghan |
| 3 | Michael McLoone | Donegal | 2-4 | 10 | Fermanagh |
| 3 | Cyril Dunne | Galway | 1-7 | 10 | Cork |
| 3 | Mickey Kearns | Sligo | 0-10 | 10 | Mayo |
| 9 | P. T. Treacy | Fermanagh | 2-3 | 9 | Armagh |
| 9 | John Hannigan | Donegal | 2-3 | 9 | Fermanagh |
