| Tournament details | |
|---|---|
| Country |  Ireland England |
| Final positions | |
| Champions | Kildare |
| Runner-up | London |
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.