This article lists the official squads for the 1991 Rugby World Cup that took place in England, Ireland, Scotland, Wales and France between 3 October and 2 November 1991.
Players marked (c) were named as captain for their national squad. All details, such as number of international caps and player age, are current as of the opening day of the tournament on 3 October 1991.
Head coach: Geoff Cooke
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Bertrand Fourcade
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coaches: John Hart and Alex Wyllie
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Jim Perkins
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Ciaran Fitzgerald
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Hiroaki Shukuzawa
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Ian McGeechan
Note: Flags indicate national union for the club/province as defined by World Rugby.
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coaches: Luis Gradín / Guillermo Lamarca
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Bob Dwyer
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Alan Davies
Note: Flags indicate national union for the club/province as defined by World Rugby.
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Ian Birtwell
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coaches: Samisoni Viriviri and George Simpkin
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Daniel Dubroca
Note: Flags indicate national union for the club/province as defined by World Rugby.
Head coach: Peter Ianusevici
Note: Flags indicate national union for the club/province as defined by World Rugby.