The 1926–27 Lancashire Cup was the nineteenth competition in the history of this regional rugby league contest and another new name was added to the trophy.
It was the turn of St. Helens, one of the founding members of the Northern Union, to lift the trophy and until this year had never even reached the final of the competition.
For the first time in the competition, both semi-finals resulted in draws and required replays.
The number of teams entering this year's competition increased by one to 14 which resulted in 2 byes in the first round.
The additional team were amateur side Pemberton Rovers.