- England
- France
- Ireland
- Scotland
- Wales
{{main|1989 Five Nations Championship}}EnglandHead coach: Geoff Cooke - Paul Ackford
- Rob Andrew
- Mark Bailey
- Will Carling (c.)
- Wade Dooley
- David Egerton
- Jerry Guscott
- Simon Halliday
- Richard Hill
- Simon Hodgkinson
- Brian Moore
- Jeff Probyn
- Paul Rendall
- Mickey Skinner
- Mike Teague
- Rory Underwood
- Peter Winterbottom
FranceHead coach: Jacques Fouroux - Marc Andrieu
- Louis Armary
- Pierre Berbizier (c.)
- Philippe Bérot
- Serge Blanco
- Gilles Bourguignon
- Didier Camberabero
- Alain Carminati
- Marc Cécillon
- Éric Champ
- Denis Charvet
- Jean Condom
- Thierry Devergie
- Philippe Dintrans
- Dominique Erbani
- Jean-Pierre Garuet-Lempirou
- Jean-Baptiste Lafond
- Patrice Lagisquet
- Philippe Marocco
- Franck Mesnel
- Pascal Ondarts
- Claude Portolan
- Laurent Rodriguez
- Olivier Roumat
- Philippe Sella
IrelandHead coach: Jim Davidson - Fergus Aherne
- Willie Anderson
- Tom Clancy
- Keith Crossan
- Phil Danaher
- Paul Dean
- Fergus Dunlea
- Paul Haycock
- David Irwin
- Michael Kiernan
- Donal Lenihan
- Noel Mannion
- Phillip Matthews (c.)
- Denis McBride
- James Joseph McCoy
- Brendan Mullin
- Pat O'Hara
- John Sexton
- Steve Smith
- Brian Spillane
ScotlandHead coach: Jim Telfer - Gary Armstrong
- Paul Burnell
- Finlay Calder (c.)
- Craig Chalmers
- Damian Cronin
- Peter Dods
- Matt Duncan
- Chris Gray
- Scott Hastings
- John Jeffrey
- Sean Lineen
- Iain Milne
- Kenny Milne
- Keith Robertson
- David Sole
- Iwan Tukalo
- Derek White
WalesHead coach: John Ryan - Bleddyn Bowen
- David Bryant
- Carwyn Davies
- Nigel Davies
- Phil Davies
- Laurance Delaney
- John Devereux
- David Evans
- Ieuan Evans
- Jonathan Griffiths
- Mike Griffiths
- Mike Hall
- Gary Jones
- Mark Jones
- Robert Jones
- Kevin Moseley
- Bob Norster
- Rowland Phillips
- Paul Turner
- Paul Thorburn (c.)
- Ian Watkins
- Hugh Williams-Jones
- Dai Young
{{DEFAULTSORT:1989 Five Nations Championship Squads}}{{rugbyunion-stub}} 1 : Six Nations Championship squads |