The 1922–23 Lancashire Cup was the fifteenth staging of this regional rugby league competition. The trophy was won again by Wigan who beat local rivals Leigh in the final at The Willows, Salford, by a score of 20–2. The attendance at the final was 15,000 and receipts £1,200 (based on increases in average earnings, this would be approximately £232,200 in 2018).