These are the 1975 Five Nations Championship squads:
Head coach: John Burgess
- Bill Beaumont
- Neil Bennett
- Mike Burton
- Martin Cooper
- Fran Cotton (c.)
- Peter Dixon
- David Duckham
- Nigel Horton
- Tony Jorden
- Alan Morley
- Tony Neary
- Alan Old
- Jacko Page
- Peter Preece
- John Pullin
- Chris Ralston
- Andy Ripley
- Dave Rollitt
- Peter Rossborough
- Keith Smith
- Steve Smith
- Peter Squires
- Stack Stevens
- Roger Uttley
- Peter Warfield
- John Watkins
- Jan Webster
Head coach: Jean Desclaux
- Richard Astre
- Jean-Luc Averous
- Jean-Louis Azarete
- Jean-Pierre Bastiat
- Roland Bertranne
- Victor Boffelli
- Jack Cantoni
- Gérard Cholley
- Claude Dourthe (c.)**
- Alain Esteve
- Jean-Martin Etchenique
- Jacques Fouroux (c.)*
- Jean-François Gourdon
- Alain Guilbert
- Jean-Pierre Lux
- Alain Paco
- Lucien Pariès
- Jean-Pierre Rives
- Jean-Pierre Romeu
- Olivier Saïsset
- François Sangalli
- Georges Senal
- Claude Spanghero
- Jean-Claude Skrela
- Michel Taffary
- Jean-Louis Ugartemendia
- Armand Vaquerin
- captain in the first game
Head coach: Roly Meates
- Roger Clegg
- Seamus Dennison
- Willie Duggan
- Tony Ensor
- Mike Gibson
- Tom Grace
- Moss Keane
- Ken Kennedy
- Willie John McBride (c.)
- Billy McCombe
- Stewart McKinney
- Ray McLoughlin
- Wallace McMaster
- Dick Milliken
- John Moloney
- Michael Sherry
- Fergus Slattery
- Pa Whelan
Head coach: Bill Dickinson
- Ian Barnes
- David Bell
- Mike Biggar
- Gordon Brown
- Sandy Carmichael
- Lewis Dick
- Andy Irvine
- Wilson Lauder
- David Leslie
- Nairn MacEwan
- Duncan Madsen
- Alastair McHarg
- Ian McGeechan
- Ian McLauchlan (c.)
- Doug Morgan
- Jim Renwick
- Billy Steele
Head coach: John Dawes
- Phil Bennett
- John Bevan
- Roger Blyth
- Terry Cobner
- Gerald Davies
- Mervyn Davies (c.)
- Gareth Edwards
- Trefor Evans
- Charlie Faulkner
- Steve Fenwick
- Ray Gravell
- Allan Martin
- Graham Price
- Mike Roberts
- Derek Quinnell
- Geoff Wheel
- J.J. Williams
- J.P.R. Williams
- Bobby Windsor