| All Ireland Champions | |
|---|---|
| Winners | Limerick (1st win) |
| Captain | Paddy McCarthy |
| All Ireland Runners-up | |
| Runners-up | Antrim |
| Provincial Champions | |
| Munster | Limerick |
| Leinster | Laois |
| Ulster | Antrim |
| Connacht | Galway |
← 1939 1941 → | |
The 1940 All-Ireland Minor Hurling Championship was the 13th staging of the All-Ireland Minor Hurling Championship since its establishment by the Gaelic Athletic Association in 1928.
Cork entered the championship as the defending champions in search of a record fourth successive title, however, they were beaten by Limerick in the Munster semi-final.
On 1 September 1940 Limerick won the championship following a 6-4 to 2-4 defeat of Antrim in the All-Ireland final. This was their first All-Ireland title.