The 1991–92 Regal Trophy was a British rugby league knockout tournament. It was the 21st season that the competition was held, and was the third staging of the competition since it was re-named the Regal Trophy.

Widnes won the final, beating Leeds by the score of 24–0.

This season saw two "name" changes and one of the three junior clubs being replaced by a new league club. The number of entrants remained the same at thirty-eight.
The changes were :-
1 Runcorn Highfield became Highfield and now played at Hoghton Road Stadium in Sutton, a suburb of St. Helens and home to St Helens Town A.F.C. (although signing a 99-year lease, the club moved on after 4½ years after a proposed rent increase made a stay unviable - Fulham became London Crusaders but were still nomadic, although playing many home matches at Crystal Palace National Sports Centre before settling at Barnet Copthall for season 1993-94
2 Scarborough Pirates joined the league and the competition (albeit for a very brief one season stay before going into administration), taking the place of one of the junior teams-
The preliminary round involved twelve clubs, to reduce the numbers to entrants to the first round proper to thirty-two.

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• 1991-92 Rugby Football League season
• 1991 Lancashire Cup
• 1991 Yorkshire Cup
• Regal Trophy
• Rugby league county cups