The 1990–91 Pilkington Cup was the 20th edition of England's, premier (at that time)

rugby union Rugby union football, commonly known simply as rugby union in English-speaking countries and rugby 15/XV in non-English-speaking world, Anglophone Europe, or often just rugby, is a Contact sport#Terminology, close-contact team sport that orig ...

club competition. Harlequins won the competition, for the second time, defeating

Northampton Northampton ( ) is a town and civil parish in Northamptonshire, England. It is the county town of Northamptonshire and the administrative centre of the Unitary authorities of England, unitary authority of West Northamptonshire. The town is sit ...

25 – 13 at

Twickenham Twickenham ( ) is a suburban district of London, England, on the River Thames southwest of Charing Cross. Historic counties of England, Historically in Middlesex, since 1965 it has formed part of the London Borough of Richmond upon Thames, who ...

. The event was sponsored by

Pilkington Pilkington is a glass-manufacturing company which is based in Lathom, Lancashire, England. It includes several legal entities in the UK, and is a subsidiary of Japanese company Nippon Sheet Glass (NSG). It was formerly an independent company ...

First round

Second round

Third round

Fourth round

Quarter-finals

Semi-finals

Final

;Notes

Sponsorship

The competition was sponsored by Pilkington who had provided £700,000 over the first three seasons and agreed to a further three years worth £1,000,000.

References

{{DEFAULTSORT:Pilkington Cup 1990–91 rugby union tournaments for clubs 1990–91 in English rugby union 1990-91