1935–36 was the twenty-eighth occasion on which the Lancashire Cup completion had been held.
Salford won the trophy by beating Wigan by 15–7.
The match was played at Wilderspool, Warrington, now in the County Palatine of Chester but (historically in the county of Lancashire. The attendance was 16,500 and receipts were £950.
This was the second of the three consecutive Lancashire Cup finals in which Salford would beat Wigan.

The number of teams entering this year's competition was increased by one with the addition of Streatham & Mitcham (hardly a Lancashire club, but useful to make the numbers up). This brought the number up to 14 and the same fixture format was retained. There was now no need for a bye in the first round, but there was still a "blank" or "dummy" fixture. The bye in the second round remained.

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1 * First Lancashire Cup match by new London club Streatham & Mitcham

2 * Wilderspool was the home ground of Warrington from 1883 to the end of the 2003 Summer season when they moved into the new purpose built Halliwell Jones Stadium. Wilderspool remained as a sports/Ruugby League ground and is/was used by Woolston Rovers/Warrington Wizards junior club. The ground had a final capacity of 9,000 although the record attendance was set in a Challenge cup third round match on 13 March 1948 when 34,304 spectators saw Warrington lose to Wigan 10–13.

• 1935–36 Northern Rugby Football League season
• Rugby league county cups