| Championship details | |
|---|---|
| All-Ireland Champions | |
| Winning team | Mayo (5th win) |
| All-Ireland Finalists | |
| Losing team | Dublin |
| Provincial Champions | |
| Munster | Kerry |
| Leinster | Dublin |
| Ulster | Tyrone |
| Connacht | Mayo |
The 1978 All-Ireland Minor Football Championship was the 47th staging of the All-Ireland Minor Football Championship, the Gaelic Athletic Association's premier inter-county Gaelic football tournament for boys under the age of 18.
Down entered the championship as defending champions, however, they were defeated in the Ulster Championship.
On 24 September 1978, Mayo won the championship following a 4-9 to 3-8 defeat of Dublin in the All-Ireland final. This was their fourth All-Ireland title overall and their first title in seven championship seasons.[1]
Quarter-Finals
| May 1978 Quarter-Final | Mayo | 10-11 - 2-05 | Leitrim | James Stephens Park, Ballina |
Semi-Finals
| June 1978 Semi-Final | Mayo | 2-10 - 1-08 | Roscommon | Dr Hyde Park, Roscommon |
| June 1978 Semi-Final | Sligo | 0-08 - 2-13 | Galway | Kilcoyne Park, Tubbercurry |
Final
| 9 July 1978 Final | Mayo | 2-06 - 2-04 | Galway | Pearse Stadium, Galway |
Preliminary Round
| May 1978 Preliminary Round | Louth | 2-05 - 2-06 | Kildare | Páirc Tailteann, Navan |
| May 1978 Preliminary Round | Longford | 1-10 - 1-08 | Offaly | Cusack Park, Mullingar |
Quarter-Finals
| June 1978 Quarter-Final | Wexford | 2-07 - 1-06 | Wicklow | Dr Cullen Park, Carlow |
| June 1978 Quarter-Final | Kildare | 0-07 - 1-11 | Meath | Croke Park, Dublin |
| June 1978 Quarter-Final | Dublin | 5-13 - 1-05 | Westmeath | Páirc Tailteann, Navan |
| June 1978 Quarter-Final | Longford | 2-10 - 0-14 | Laois | O'Connor Park, Tullamore |
Semi-Finals
| July 1978 Semi-Final | Meath | 2-07 - 2-07 | Wexford | Croke Park, Dublin |
| July 1978 Semi-Final | Dublin | 2-13 - 1-07 | Longford | O'Moore Park, Portlaoise |
Final
| 30 July 1978 Final | Dublin | 3-12 - 0-11 | Wexford | Croke Park, Dublin |
Preliminary Round
| 1978 Preliminary Round | Derry | 2-10 - 3-04 | Donegal | Dean McGlinchey Park, Ballinascreen |
Quarter-Finals
| 1978 Quarter-Final | Monaghan | 3-10 - 0-03 | Antrim | Casement Park, Belfast |
| 1978 Quarter-Final | Down | 3-07 - 0-08 | Fermanagh | St. Molaise Park, Irvinestown |
| 1978 Quarter-Final | Armagh | 1-07 - 0-08 | Cavan | Breffni Park, Cavan |
| 1978 Quarter-Final | Tyrone | 1-08 - 1-05 | Down | The Playing Fields, Lurgan |
Semi-Finals
| 1978 Semi-Final | Tyrone | 2-04 - 0-09 | Down | Casement Park, Belfast |
| 1978 Semi-Final | Armagh | 0-07 - 2-11 | Monaghan | St. Mary's Park, Castleblaney |
Final
| 23 July 1978 Final | Tyrone | 3-11 - 2-09 | Monaghan | St. Tiernach's Park, Clones |
Quarter-Final
Semi-Finals
| 1978 Semi-Final | Cork | 2-11 - 1-04 | Limerick | Páirc Uí Chaoimh, Cork |
Final
| 16 July 1978 Final | Cork | 0-06 - 1-04 | Kerry | Páirc Uí Chaoimh, Cork |
Semi-Finals
| 13 August 1978 Semi-Final | Mayo | 1-10 - 0-10 | Kerry | Croke Park, Dublin |
| 20 August 1978 Semi-Final | Tyrone | 1-09 - 5-07 | Dublin | Croke Park, Dublin |
Final
| 24 September 1978 Final | Mayo | 4-09 - 3-08 | Dublin | Croke Park, Dublin |