1984–85 Lancashire Cup

1984–85 was the seventy-second occasion on which the Lancashire Cup completion had been held.

St. Helens won the trophy by beating Wigan by the score of 26–18.

The match was played at Central Park, Wigan, (historically in the county of Lancashire). The attendance was 26,074 and receipts were £6,2139.00

This was the first time in over twenty years that the attendance exceeded 20,000, and it would continue around this level for the next four seasons. The receipts climbed from last year's near-record £13,160.00 to £62,139.