| All-Ireland Senior B Hurling Championship | |
| Year: | 1980 |
| Country: | |
| Winners: | Kildare |
| Second: | London |
| Prev Season: | 1979 |
| Next Season: | 1981 |
The 1980 All-Ireland Senior B Hurling Championship was the seventh staging of Ireland's secondary hurling knock-out competition. Kildare won the championship, beating London 2–20 to 2–14 in the final at Croke Park, Dublin.
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