1989–90 Lancashire Cup

The 1989–90 Lancashire Cup was the 77th occasion on which the Lancashire Cup competition had been held. Warrington won the trophy by beating Oldham by the score of 24-16 in the final. The match was played at Knowsley Road, Eccleston, St Helens, Merseyside, (historically in the county of Lancashire). The attendance was 9.990 and receipts were £41,804.

Background
This season, Chorley Borough (see note 1) joined the league, bringing the total number of entrants up to 17.

This necessitated the need for a preliminary round (consisting of just 1 game). The first round (proper) then involved 16 clubs, thus removing the need of any  "blank" or "dummy" fixtures or any byes.

Preliminary round
Involved 1 match and 2 clubs

First round
Involved 8 matches (with no byes) and 16 clubs

Second round
Involved 4 matches and 8 clubs

Semi-finals
Involved 2 matches and 4 clubs