All-Ireland Senior B Hurling Championship 1977
| Country |
 Ireland England
|
||
|---|---|---|---|
| Teams | 8 | ||
| Champions | Laois | ||
| Runners-up | London | ||
| Matches played | 8 | ||
|
|||
The All-Ireland Senior B Hurling Championship of 1977 was the fourth staging of Ireland's secondary hurling knock-out competition. Laois won the championship, beating London 3-21 to 2-9 in the final at Croke Park, Dublin.
First round: (3 matches) These are three matches between the first six participating teams. Three teams are eliminated at this stage while the three winning teams qualify for the semi-final stages.
Semi-finals: (2 matches) The three winners from the first round games join a fourth team who received a bye to this stage to contest the semi-finals. Two teams are eliminated at this stage while the two winners advance to the 'home' final.
Home final: (1 match) The winners of the two semi-finals contest this game. One team is eliminated at this stage while the winners advance to the 'proper' All-Ireland final.
Final: (1 match) The winners of the All-Ireland 'home' final join London to contest this game. One team is eliminated at this stage while the winners are allowed to participate in the All-Ireland SHC quarter-final.
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