| Championship details | |
|---|---|
| All-Ireland Champions | |
| Winning team | Roscommon (1st win) |
| All-Ireland Finalists | |
| Losing team | Monaghan |
| Provincial Champions | |
| Munster | Cork |
| Leinster | Westmeath |
| Ulster | Monaghan |
| Connacht | Roscommon |
The 1939 All-Ireland Minor Football Championship was the 11th 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.
Cavan entered the championship as defending champions, however, they were defeated by Monaghan in a replay of the Ulster final.
On 24 September 1939, Roscommon won the championship following a 1-9 to 1-7 defeat of Monaghan in the All-Ireland final. This was their first All-Ireland title.[1]
 Westmeath | 1-02–0-02 |  Louth |
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Semi-finals
Final
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