# 2018 Six Nations Championship squads

This is a list of the complete squads for the 2018 Six Nations Championship, an annual rugby union tournament contested by the national rugby teams of England, France, Ireland, Italy, Scotland and Wales. England were the defending champions.
Note: Number of caps and players' ages are indicated as of 3 February 2018 – the tournament's opening day.

## England

On 18 January, Eddie Jones named a 35-man squad ahead of their opening Championship match, against Italy.
Head coach: Eddie Jones
| Player | Position | Date of birth (age) | Caps | Club/province |
| Tom Dunn | Hooker | (1992-11-12)12 November 1992 (aged 25) | 0 | Bath |
| Jamie George | Hooker | (1990-10-20)20 October 1990 (aged 27) | 20 | Saracens |
| Dylan Hartley (c) | Hooker | (1986-03-24)24 March 1986 (aged 31) | 89 | Northampton Saints |
| Lewis Boyce | Prop | (1996-06-30)30 June 1996 (aged 21) | 0 | Harlequins |
| Dan Cole | Prop | (1987-05-09)9 May 1987 (aged 30) | 77 | Leicester Tigers |
| Alec Hepburn | Prop | (1993-03-30)30 March 1993 (aged 24) | 0 | Exeter Chiefs |
| Kyle Sinckler | Prop | (1993-03-30)30 March 1993 (aged 24) | 8 | Harlequins |
| Mako Vunipola | Prop | (1991-01-14)14 January 1991 (aged 27) | 44 | Saracens |
| Harry Williams | Prop | (1991-10-01)1 October 1991 (aged 26) | 5 | Exeter Chiefs |
| Nick Isiekwe | Lock | (1998-04-20)20 April 1998 (aged 19) | 2 | Saracens |
| Maro Itoje | Lock | (1994-10-28)28 October 1994 (aged 23) | 14 | Saracens |
| George Kruis | Lock | (1990-02-22)22 February 1990 (aged 27) | 21 | Saracens |
| Joe Launchbury | Lock | (1991-04-12)12 April 1991 (aged 26) | 47 | Wasps |
| Courtney Lawes | Lock | (1989-02-23)23 February 1989 (aged 28) | 61 | Northampton Saints |
| Gary Graham | Flanker | (1992-08-29)29 August 1992 (aged 25) | 0 | Newcastle Falcons |
| Zach Mercer | Flanker | (1997-02-28)28 February 1997 (aged 20) | 0 | Bath |
| Chris Robshaw | Flanker | (1986-06-04)4 June 1986 (aged 31) | 59 | Harlequins |
| Sam Underhill | Flanker | (1996-07-22)22 July 1996 (aged 21) | 3 | Bath |
| Sam Simmonds | Number 8 | (1994-11-10)10 November 1994 (aged 23) | 3 | Exeter Chiefs |
| Danny Care | Scrum-half | (1987-01-02)2 January 1987 (aged 31) | 76 | Harlequins |
| Ben Youngs | Scrum-half | (1989-09-05)5 September 1989 (aged 28) | 73 | Leicester Tigers |
| George Ford | Fly-half | (1993-03-16)16 March 1993 (aged 24) | 40 | Leicester Tigers |
| Alex Lozowski | Fly-half | (1993-06-30)30 June 1993 (aged 24) | 4 | Saracens |
| Marcus Smith | Fly-half | (1999-02-14)14 February 1999 (aged 18) | 0 | Harlequins |
| Owen Farrell | Centre | (1991-09-24)24 September 1991 (aged 26) | 53 | Saracens |
| Jonathan Joseph | Centre | (1991-05-18)18 May 1991 (aged 26) | 35 | Bath |
| Henry Slade | Centre | (1993-03-19)19 March 1993 (aged 24) | 10 | Exeter Chiefs |
| Ben Te'o | Centre | (1987-01-27)27 January 1987 (aged 31) | 8 | Worcester Warriors |
| Nathan Earle | Wing | (1994-09-25)25 September 1994 (aged 23) | 0 | Saracens |
| Jack Nowell | Wing | (1993-04-11)11 April 1993 (aged 24) | 23 | Exeter Chiefs |
| Jonny May | Wing | (1990-04-01)1 April 1990 (aged 27) | 29 | Leicester Tigers |
| Denny Solomona | Wing | (1993-09-27)27 September 1993 (aged 24) | 2 | Sale Sharks |
| Anthony Watson | Wing | (1994-02-26)26 February 1994 (aged 23) | 28 | Bath |
| Mike Brown | Fullback | (1985-09-04)4 September 1985 (aged 32) | 64 | Harlequins |
| Harry Mallinder | Fullback | (1996-06-13)13 June 1996 (aged 21) | 0 | Northampton Saints |

### Call-ups

On 29 January, James Haskell and Joe Marler were called up to the squad, although are unavailable for selection for the earlier rounds due to suspension.
On 5 February, Eddie Jones called up Luke Cowan-Dickie, Nathan Hughes and Richard Wigglesworth, with Wigglesworth replacing Ben Youngs who was injured in round one.
On 12 February, Sam Moore and Gabriel Ibitoye joined the squad during the first break, with Ibitoye joining Marcus Smith as an apprentice player.
On 26 February, Charlie Ewels was brought into the squad as part of the training squad ahead of the French game.
On 3 March, Ewels remained with the squad, whilst Elliot Daly rejoined the squad after recovering for injury.
On 11 March, Don Armand joined the squad as an injury replacement for Nathan Hughes who was ruled out of the final round.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Luke Cowan-Dickie | Hooker | (1993-06-20)20 June 1993 (aged 24) | 6 | Exeter Chiefs |
| Joe Marler | Prop | (1990-07-07)7 July 1990 (aged 27) | 72 | Harlequins |
| Charlie Ewels | Lock | (1995-06-29)29 June 1995 (aged 22) | 6 | Bath |
| Don Armand | Flanker | (1988-09-23)23 September 1988 (aged 29) | 1 | Exeter Chiefs |
| James Haskell | Flanker | (1985-04-02)2 April 1985 (aged 32) | 75 | Wasps |
| Nathan Hughes | Number 8 | (1991-06-10)10 June 1991 (aged 26) | 12 | Wasps |
| Sam Moore | Number 8 | (1998-09-09)9 September 1998 (aged 19) | 0 | Sale Sharks |
| Richard Wigglesworth | Scrum-half | (1983-06-09)9 June 1983 (aged 34) | 27 | Saracens |
| Gabriel Ibitoye | Centre | (1998-03-05)5 March 1998 (aged 19) | 0 | Harlequins |
| Elliot Daly | Wing | (1992-10-08)8 October 1992 (aged 25) | 16 | Wasps |

## France

On the 17 January, Jacques Brunel named a 32-man squad ahead of France's opening Championship match against Ireland.
Head coach: Jacques Brunel
| Player | Position | Date of birth (age) | Caps | Club/province |
| Camille Chat | Hooker | (1995-12-18)18 December 1995 (aged 22) | 10 | Racing 92 |
| Guilhem Guirado (c) | Hooker | (1986-06-17)17 June 1986 (aged 31) | 56 | Toulon |
| Christopher Tolofua | Hooker | (1993-12-31)31 December 1993 (aged 24) | 7 | Saracens |
| Eddy Ben Arous | Prop | (1990-08-25)25 August 1990 (aged 27) | 19 | Racing 92 |
| Cedate Gomes Sa | Prop | (1993-08-07)7 August 1993 (aged 24) | 0 | Racing 92 |
| Jefferson Poirot | Prop | (1992-11-01)1 November 1992 (aged 25) | 14 | Bordeaux Bègles |
| Dany Priso | Prop | (1994-01-02)2 January 1994 (aged 24) | 0 | La Rochelle |
| Rabah Slimani | Prop | (1989-10-18)18 October 1989 (aged 28) | 41 | Clermont Auvergne |
| Paul Gabrillagues | Lock | (1993-06-03)3 June 1993 (aged 24) | 2 | Stade Français |
| Arthur Iturria | Lock | (1994-05-13)13 May 1994 (aged 23) | 1 | Clermont Auvergne |
| Félix Lambey | Lock | (1994-03-15)15 March 1994 (aged 23) | 0 | Lyon |
| Sébastien Vahaamahina | Lock | (1991-10-21)21 October 1991 (aged 26) | 28 | Clermont Auvergne |
| Yacouba Camara | Flanker | (1994-06-02)2 June 1994 (aged 23) | 6 | Montpellier |
| Kevin Gourdon | Flanker | (1990-01-23)23 January 1990 (aged 28) | 15 | La Rochelle |
| Anthony Jelonch | Flanker | (1996-07-28)28 July 1996 (aged 21) | 2 | Castres |
| Wenceslas Lauret | Flanker | (1989-03-28)28 March 1989 (aged 28) | 12 | Racing 92 |
| Sekou Macalou | Flanker | (1995-04-20)20 April 1995 (aged 22) | 1 | Stade Français |
| Marco Tauleigne | Number 8 | (1993-08-30)30 August 1993 (aged 24) | 0 | Bordeaux Bègles |
| Antoine Dupont | Scrum-half | (1996-11-15)15 November 1996 (aged 21) | 6 | Toulouse |
| Maxime Machenaud | Scrum-half | (1988-12-30)30 December 1988 (aged 29) | 31 | Racing 92 |
| Morgan Parra | Scrum-half | (1988-11-15)15 November 1988 (aged 29) | 66 | Clermont Auvergne |
| Anthony Belleau | Fly-half | (1996-04-08)8 April 1996 (aged 21) | 2 | Toulon |
| Matthieu Jalibert | Fly-half | (1998-11-06)6 November 1998 (aged 19) | 0 | Bordeaux Bègles |
| Henry Chavancy | Centre | (1988-05-22)22 May 1988 (aged 29) | 3 | Racing 92 |
| Jonathan Danty | Centre | (1990-10-07)7 October 1990 (aged 27) | 4 | Stade Français |
| Geoffrey Doumayrou | Centre | (1989-09-16)16 September 1989 (aged 28) | 2 | La Rochelle |
| Rémi Lamerat | Centre | (1990-01-14)14 January 1990 (aged 28) | 16 | Clermont Auvergne |
| Benjamin Fall | Wing | (1989-03-03)3 March 1989 (aged 28) | 6 | Montpellier |
| Teddy Thomas | Wing | (1993-09-18)18 September 1993 (aged 24) | 8 | Racing 92 |
| Virimi Vakatawa | Wing | (1992-05-01)1 May 1992 (aged 25) | 15 | Racing 92 |
| Brice Dulin | Fullback | (1990-04-13)13 April 1990 (aged 27) | 29 | Racing 92 |
| Geoffrey Palis | Fullback | (1991-07-08)8 July 1991 (aged 26) | 0 | Castres |

### Call-ups

On 22 January, Hugo Bonneval and Baptiste Serin were added to the squad as injury cover for Brice Dulin and Morgan Parra who were injured in the final round of the European Champions Cup.
On 24 January, Camille Chat was unable to join the group because of flu like symptoms. He was replaced by Adrien Pélissié.
On 25 January, Anthony Jelonch injured himself in training and was replaced by Alexandre Lapandry.
On 30 January, Christopher Tolofua injured himself, he was not replaced by another player.
On 5 February, Lionel Beauxis, Baptiste Couilloud, and Louis Picamoles where called up to replace Matthieu Jalibert, Antoine Dupont, and Kévin Gourdon respectively, who were injured in the first match against Ireland.
On 13 February, Mathieu Babillot, Camille Chat, François Trinh-Duc, Mathieu Bastareaud, Gaël Fickou, Kélian Galletier, Rémy Grosso, Bernard Le Roux, and Romain Taofifenua where called up to replace Anthony Belleau, Rémi Lamerat, Félix Lambey, Alexandre Lapandry, Sékou Macalou, Arthur Iturria, Louis Picamoles, Jonathan Danty, and Teddy Thomas respectively, who were suspended due to inappropriate behaviour after the second match against Scotland.
On 12 March, Pierre Bougarit was called up because of an injury to Guilhem Guirado which made him uncertain for the match against Wales. Whilst Arthur Iturria was called up to replace the injured Romain Taofifénua.
On 13 March, after an HIA protocol done 48 hours post-match on Hugo Bonneval after the England match, it was confirmed that he must now follow a gradual return to rugby protocol which does not allow him to train with the team until the Friday before the match against Wales, therefore Yoann Huget was called as a backup.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Pierre Bougarit | Hooker | (1997-09-12) 12 September 1997 (age 27) | 0 | La Rochelle |
| Adrien Pélissié | Hooker | (1990-08-07)7 August 1990 (aged 27) | 0 | Bordeaux Bègles |
| Romain Taofifénua | Lock | (1990-09-14)14 September 1990 (aged 27) | 12 | Toulon |
| Mathieu Babillot | Flanker | (1993-09-09)9 September 1993 (aged 24) | 0 | Castres |
| Alexandre Lapandry | Flanker | (1989-04-13)13 April 1989 (aged 28) | 10 | Clermont Auvergne |
| Bernard Le Roux | Flanker | (1989-06-04)4 June 1989 (aged 28) | 27 | Racing 92 |
| Kélian Galletier | Number 8 | (1992-03-18)18 March 1992 (aged 25) | 1 | Montpellier |
| Louis Picamoles | Number 8 | (1986-02-05)5 February 1986 (aged 31) | 68 | Montpellier |
| Baptiste Couilloud | Scrum-half | (1997-07-22)22 July 1997 (aged 20) | 0 | Lyon |
| Baptiste Serin | Scrum-half | (1994-06-20)20 June 1994 (aged 23) | 16 | Bordeaux Bègles |
| Lionel Beauxis | Fly-half | (1985-10-24)24 October 1985 (aged 32) | 20 | Lyon |
| François Trinh-Duc | Fly-half | (1986-11-11)11 November 1986 (aged 31) | 63 | Toulon |
| Mathieu Bastareaud | Centre | (1988-09-17)17 September 1988 (aged 29) | 42 | Toulon |
| Gaël Fickou | Centre | (1994-03-26)26 March 1994 (aged 23) | 32 | Toulouse |
| Rémy Grosso | Wing | (1988-12-04)4 December 1988 (aged 29) | 1 | Clermont Auvergne |
| Yoann Huget | Wing | (1987-06-02) 2 June 1987 (age 37) | 51 | Toulouse |
| Hugo Bonneval | Fullback | (1990-11-19)19 November 1990 (aged 27) | 9 | Toulon |

## Ireland

On the 17 January, Joe Schmidt announced a 36-man squad for the opening two rounds of the Championship.
Head coach: Joe Schmidt
| Player | Position | Date of birth (age) | Caps | Club/province |
| Rory Best (c) | Hooker | (1982-08-15)15 August 1982 (aged 35) | 106 | Ulster |
| Seán Cronin | Hooker | (1986-05-06)6 May 1986 (aged 31) | 56 | Leinster |
| Rob Herring | Hooker | (1990-08-27)27 August 1990 (aged 27) | 3 | Ulster |
| Tadhg Furlong | Prop | (1992-11-14)14 November 1992 (aged 25) | 19 | Leinster |
| Cian Healy | Prop | (1987-10-07)7 October 1987 (aged 30) | 73 | Leinster |
| Dave Kilcoyne | Prop | (1988-12-14)14 December 1988 (aged 29) | 22 | Munster |
| Jack McGrath | Prop | (1989-10-11)11 October 1989 (aged 28) | 42 | Leinster |
| Andrew Porter | Prop | (1996-01-16)16 January 1996 (aged 22) | 3 | Leinster |
| John Ryan | Prop | (1988-08-02)2 August 1988 (aged 29) | 11 | Munster |
| Ultan Dillane | Lock | (1993-11-09)9 November 1993 (aged 24) | 11 | Connacht |
| Iain Henderson | Lock | (1992-02-21)21 February 1992 (aged 25) | 34 | Ulster |
| Quinn Roux | Lock | (1990-10-30)30 October 1990 (aged 27) | 3 | Connacht |
| James Ryan | Lock | (1996-07-24)24 July 1996 (aged 21) | 4 | Leinster |
| Devin Toner | Lock | (1986-06-29)29 June 1986 (aged 31) | 53 | Leinster |
| Dan Leavy | Flanker | (1994-05-23)23 May 1994 (aged 23) | 4 | Leinster |
| Jordi Murphy | Flanker | (1991-04-22)22 April 1991 (aged 26) | 18 | Leinster |
| Peter O'Mahony | Flanker | (1989-09-17)17 September 1989 (aged 28) | 42 | Munster |
| Josh van der Flier | Flanker | (1993-04-25)25 April 1993 (aged 24) | 9 | Leinster |
| Jack Conan | Number 8 | (1992-07-29)29 July 1992 (aged 25) | 5 | Leinster |
| CJ Stander | Number 8 | (1990-04-05)5 April 1990 (aged 27) | 18 | Munster |
| Kieran Marmion | Scrum-half | (1992-02-11)11 February 1992 (aged 25) | 18 | Connacht |
| Luke McGrath | Scrum-half | (1993-02-03)3 February 1993 (aged 25) | 6 | Leinster |
| Conor Murray | Scrum-half | (1989-04-20)20 April 1989 (aged 28) | 59 | Munster |
| Joey Carbery | Fly-half | (1995-11-01)1 November 1995 (aged 22) | 6 | Leinster |
| Ian Keatley | Fly-half | (1987-04-01)1 April 1987 (aged 30) | 7 | Munster |
| Johnny Sexton | Fly-half | (1985-07-11)11 July 1985 (aged 32) | 68 | Leinster |
| Bundee Aki | Centre | (1990-04-07)7 April 1990 (aged 27) | 2 | Connacht |
| Chris Farrell | Centre | (1993-03-16)16 March 1993 (aged 24) | 2 | Munster |
| Robbie Henshaw | Centre | (1993-06-12)12 June 1993 (aged 24) | 31 | Leinster |
| Rory Scannell | Centre | (1993-12-22)22 December 1993 (aged 24) | 3 | Munster |
| Andrew Conway | Wing | (1991-07-11)11 July 1991 (aged 26) | 6 | Munster |
| Keith Earls | Wing | (1987-10-02)2 October 1987 (aged 30) | 62 | Munster |
| Fergus McFadden | Wing | (1986-06-17)17 June 1986 (aged 31) | 32 | Leinster |
| Jacob Stockdale | Wing | (1996-04-06)6 April 1996 (aged 21) | 4 | Ulster |
| Rob Kearney | Fullback | (1986-03-26)26 March 1986 (aged 31) | 78 | Leinster |
| Jordan Larmour | Fullback | (1997-06-10)10 June 1997 (aged 20) | 0 | Leinster |

### Call-ups

On 22 January, James Cronin was added to the squad as injury cover for Dave Kilcoyne who was injured in the final round of the European Champions Cup.
On 19 February, John Cooney, Garry Ringrose and Niall Scannell were called into the squad ahead of the round 3 clash with Wales as injury cover for Luke McGrath, Robbie Henshaw and Rob Herring.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Niall Scannell | Hooker | (1992-04-08)8 April 1992 (aged 25) | 7 | Munster |
| James Cronin | Prop | (1990-11-23)23 November 1990 (aged 27) | 3 | Munster |
| John Cooney | Scrum-half | (1990-05-01)1 May 1990 (aged 27) | 1 | Ulster |
| Garry Ringrose | Centre | (1995-01-26)26 January 1995 (aged 23) | 11 | Leinster |

## Italy

On the 25 January, Conor O'Shea announced a 31-man squad for the opening two rounds of the Championship.
Head coach: Conor O'Shea
Note: Flags indicate national union for the club/province as defined by World Rugby.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Luca Bigi | Hooker | (1991-04-19)19 April 1991 (aged 26) | 6 | Benetton |
| Oliviero Fabiani | Hooker | (1990-07-13)13 July 1990 (aged 27) | 4 | Zebre |
| Leonardo Ghiraldini | Hooker | (1984-12-26)26 December 1984 (aged 33) | 89 | Toulouse |
| Simone Ferrari | Prop | (1994-03-28)28 March 1994 (aged 23) | 8 | Benetton |
| Andrea Lovotti | Prop | (1989-07-28)28 July 1989 (aged 28) | 20 | Zebre |
| Tiziano Pasquali | Prop | (1994-07-14)14 July 1994 (aged 23) | 2 | Benetton |
| Nicola Quaglio | Prop | (1991-03-09)9 March 1991 (aged 26) | 2 | Benetton |
| Marco Riccioni | Prop | (1997-10-19)19 October 1997 (aged 20) | 0 | Benetton |
| George Biagi | Lock | (1985-10-04)4 October 1985 (aged 32) | 19 | Zebre |
| Dean Budd | Lock | (1986-07-31)31 July 1986 (aged 31) | 6 | Benetton |
| Federico Ruzza | Lock | (1994-08-04)4 August 1994 (aged 23) | 3 | Benetton |
| Alessandro Zanni | Lock | (1984-01-31)31 January 1984 (aged 34) | 99 | Benetton |
| Renato Giammarioli | Flanker | (1995-03-23)23 March 1995 (aged 22) | 1 | Zebre |
| Giovanni Licata | Flanker | (1997-02-18)18 February 1997 (aged 20) | 3 | Fiamme Oro |
| Maxime Mbanda | Flanker | (1993-04-10)10 April 1993 (aged 24) | 11 | Zebre |
| Sebastian Negri | Flanker | (1994-06-30)30 June 1994 (aged 23) | 2 | Benetton |
| Sergio Parisse (c) | Number 8 | (1983-09-12)12 September 1983 (aged 34) | 129 | Stade Français |
| Braam Steyn | Number 8 | (1992-05-02)2 May 1992 (aged 25) | 17 | Benetton |
| Edoardo Gori | Scrum-half | (1990-03-05)5 March 1990 (aged 27) | 65 | Benetton |
| Marcello Violi | Scrum-half | (1993-10-11)11 October 1993 (aged 24) | 8 | Zebre |
| Tommaso Allan | Fly-half | (1993-04-26)26 April 1993 (aged 24) | 33 | Benetton |
| Carlo Canna | Fly-half | (1992-08-25)25 August 1992 (aged 25) | 25 | Zebre |
| Ian McKinley | Fly-half | (1989-12-04)4 December 1989 (aged 28) | 3 | Benetton |
| Tommaso Benvenuti | Centre | (1990-12-12)12 December 1990 (aged 27) | 45 | Benetton |
| Giulio Bisegni | Centre | (1992-04-04)4 April 1992 (aged 25) | 7 | Zebre |
| Tommaso Boni | Centre | (1993-01-15)15 January 1993 (aged 25) | 8 | Zebre |
| Tommaso Castello | Centre | (1991-08-14)14 August 1991 (aged 26) | 5 | Zebre |
| Mattia Bellini | Wing | (1994-02-08)8 February 1994 (aged 23) | 8 | Zebre |
| Matteo Minozzi | Wing | (1996-06-04)4 June 1996 (aged 21) | 3 | Zebre |
| Jayden Hayward | Fullback | (1987-02-11)11 February 1987 (aged 30) | 3 | Benetton |
| Edoardo Padovani | Fullback | (1993-05-15)15 May 1993 (aged 24) | 14 | Zebre |

### Call-ups

On 27 February, O'Shea named a 32-man squad for the final two rounds of the Championship; Dario Chistolini, Luca Morisi, Guglielmo Palazzani, Jake Polledri and Federico Zani were new additions to the Championship squad.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Dario Chistolini | Prop | (1988-09-14)14 September 1988 (aged 29) | 20 | Zebre |
| Federico Zani | Prop | (1989-04-09)9 April 1989 (aged 28) | 6 | Benetton |
| Jake Polledri | Flanker | (1995-11-08)8 November 1995 (aged 22) | 0 | Gloucester |
| Guglielmo Palazzani | Scrum-half | (1991-04-11)11 April 1991 (aged 26) | 22 | Zebre |
| Luca Morisi | Centre | (1991-02-22)22 February 1991 (aged 26) | 16 | Benetton |

## Scotland

On the 16 January, Gregor Townsend named a 40-man squad for the Championship.
Head coach: Gregor Townsend
| Player | Position | Date of birth (age) | Caps | Club/province |
| Scott Lawson | Hooker | (1981-09-28)28 September 1981 (aged 36) | 46 | Newcastle Falcons |
| Stuart McInally | Hooker | (1990-08-09)9 August 1990 (aged 27) | 12 | Edinburgh |
| George Turner | Hooker | (1991-01-03)3 January 1991 (aged 27) | 2 | Glasgow Warriors |
| Simon Berghan | Prop | (1990-12-07)7 December 1990 (aged 27) | 5 | Edinburgh |
| Jamie Bhatti | Prop | (1993-09-08)8 September 1993 (aged 24) | 3 | Glasgow Warriors |
| Murray McCallum | Prop | (1996-03-16)16 March 1996 (aged 21) | 0 | Edinburgh |
| Gordon Reid | Prop | (1987-03-04)4 March 1987 (aged 30) | 27 | London Irish |
| D'Arcy Rae | Prop | (1994-12-21)21 December 1994 (aged 23) | 0 | Glasgow Warriors |
| Jon Welsh | Prop | (1986-10-13)13 October 1986 (aged 31) | 11 | Newcastle Falcons |
| Grant Gilchrist | Lock | (1990-08-09)9 August 1990 (aged 27) | 18 | Edinburgh |
| Jonny Gray | Lock | (1994-03-14)14 March 1994 (aged 23) | 38 | Glasgow Warriors |
| Richie Gray | Lock | (1989-08-24)24 August 1989 (aged 28) | 64 | Toulouse |
| Ben Toolis | Lock | (1992-03-31)31 March 1992 (aged 25) | 7 | Edinburgh |
| John Barclay (c) | Flanker | (1986-09-24)24 September 1986 (aged 31) | 66 | Scarlets |
| Magnus Bradbury | Flanker | (1995-08-23)23 August 1995 (aged 22) | 2 | Edinburgh |
| Luke Hamilton | Flanker | (1992-01-07)7 January 1992 (aged 26) | 1 | Leicester Tigers |
| Rob Harley | Flanker | (1990-05-26)26 May 1990 (aged 27) | 20 | Glasgow Warriors |
| Hamish Watson | Flanker | (1991-10-15)15 October 1991 (aged 26) | 15 | Edinburgh |
| David Denton | Number 8 | (1990-02-05)5 February 1990 (aged 27) | 35 | Worcester Warriors |
| Cornell du Preez | Number 8 | (1991-03-23)23 March 1991 (aged 26) | 5 | Edinburgh |
| Ryan Wilson | Number 8 | (1989-05-18)18 May 1989 (aged 28) | 32 | Glasgow Warriors |
| Nathan Fowles | Scrum-half | (1993-04-08)8 April 1993 (aged 24) | 0 | Edinburgh |
| Greig Laidlaw | Scrum-half | (1985-10-12)12 October 1985 (aged 32) | 58 | Clermont Auvergne |
| Ali Price | Scrum-half | (1993-05-12)12 May 1993 (aged 24) | 11 | Glasgow Warriors |
| Henry Pyrgos | Scrum-half | (1989-07-09)9 July 1989 (aged 28) | 27 | Glasgow Warriors |
| Peter Horne | Fly-half | (1989-10-05)5 October 1989 (aged 28) | 28 | Glasgow Warriors |
| Ruaridh Jackson | Fly-half | (1988-02-12)12 February 1988 (aged 29) | 32 | Glasgow Warriors |
| Finn Russell | Fly-half | (1992-09-23)23 September 1992 (aged 25) | 32 | Glasgow Warriors |
| Mark Bennett | Centre | (1993-02-03)3 February 1993 (aged 25) | 20 | Edinburgh |
| Alex Dunbar | Centre | (1990-04-23)23 April 1990 (aged 27) | 28 | Glasgow Warriors |
| Nick Grigg | Centre | (1992-09-18)18 September 1992 (aged 25) | 1 | Glasgow Warriors |
| Chris Harris | Centre | (1990-12-28)28 December 1990 (aged 27) | 1 | Newcastle Falcons |
| Huw Jones | Centre | (1993-12-17)17 December 1993 (aged 24) | 11 | Glasgow Warriors |
| Duncan Taylor | Centre | (1989-09-05)5 September 1989 (aged 28) | 21 | Saracens |
| Lee Jones | Wing | (1988-06-28)28 June 1988 (aged 29) | 7 | Glasgow Warriors |
| Sean Maitland | Wing | (1988-09-14)14 September 1988 (aged 29) | 29 | Saracens |
| Byron McGuigan | Wing | (1989-08-20)20 August 1989 (aged 28) | 2 | Sale Sharks |
| Tommy Seymour | Wing | (1988-07-01)1 July 1988 (aged 29) | 39 | Glasgow Warriors |
| Stuart Hogg | Fullback | (1992-06-24)24 June 1992 (aged 25) | 55 | Glasgow Warriors |
| Blair Kinghorn | Fullback | (1997-01-18)18 January 1997 (aged 21) | 0 | Edinburgh |

### Call-ups

On 22 January, Neil Cochrane was added to the squad as injury cover for George Turner who was injured in the final round of the European Champions Cup.
On 17 February, Matt Scott and Tim Swinson were called up to the squad as injury replacements for Duncan Taylor and Richie Gray, whilst James Malcolm, WP Nel, Josh Strauss and Tim Visser joined the squad, replacing Murray McCallum, D'Arcy Rae, Magnus Bradbury and Nathan Fowles.
On 5 March, Fraser Brown, Zander Fagerson, John Hardie, George Horne and Darryl Marfo were called up ahead of the Irish test in round 4, with Brown, Fagerson and Marfo rejoining the squad after recovering from respective injuries.
On 12 March, Scott Cummings, Matt Fagerson, Adam Hastings and Richie Vernon joined the squad ahead of the final round game against Italy.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Neil Cochrane | Hooker | (1984-01-04)4 January 1984 (aged 34) | 0 | Edinburgh |
| Fraser Brown | Hooker | (1989-06-20)20 June 1989 (aged 28) | 29 | Glasgow Warriors |
| James Malcolm | Hooker | (1994-09-23)23 September 1994 (aged 23) | 0 | Glasgow Warriors |
| Zander Fagerson | Prop | (1996-01-19)19 January 1996 (aged 22) | 15 | Glasgow Warriors |
| Darryl Marfo | Prop | (1990-01-11)11 January 1990 (aged 28) | 3 | Edinburgh |
| WP Nel | Prop | (1986-04-30)30 April 1986 (aged 31) | 19 | Edinburgh |
| Scott Cummings | Lock | (1996-12-03)3 December 1996 (aged 21) | 0 | Glasgow Warriors |
| Tim Swinson | Lock | (1987-02-17)17 February 1987 (aged 30) | 33 | Glasgow Warriors |
| Matt Fagerson | Flanker | (1998-07-16)16 July 1998 (aged 19) | 0 | Glasgow Warriors |
| John Hardie | Flanker | (1988-07-27)27 July 1988 (aged 29) | 16 | Edinburgh |
| Josh Strauss | Number 8 | (1986-10-23)23 October 1986 (aged 31) | 14 | Sale Sharks |
| George Horne | Scrum-half | (1995-05-12)12 May 1995 (aged 22) | 0 | Glasgow Warriors |
| Adam Hastings | Fly-half | (1996-10-05)5 October 1996 (aged 21) | 0 | Glasgow Warriors |
| Matt Scott | Centre | (1990-09-30)30 September 1990 (aged 27) | 39 | Gloucester |
| Richie Vernon | Centre | (1987-07-07)7 July 1987 (aged 30) | 24 | Glasgow Warriors |
| Tim Visser | Wing | (1987-05-29)29 May 1987 (aged 30) | 33 | Harlequins |

## Wales

On the 16 January, Warren Gatland named a 39-man squad for the Championship.
Head coach: Warren Gatland
| Player | Position | Date of birth (age) | Caps | Club/province |
| Scott Baldwin | Hooker | (1988-07-12)12 July 1988 (aged 29) | 34 | Ospreys |
| Elliot Dee | Hooker | (1994-03-07)7 March 1994 (aged 23) | 2 | Dragons |
| Ken Owens | Hooker | (1987-01-03)3 January 1987 (aged 31) | 52 | Scarlets |
| Rob Evans | Prop | (1992-04-14)14 April 1992 (aged 25) | 20 | Scarlets |
| Tomas Francis | Prop | (1992-04-27)27 April 1992 (aged 25) | 26 | Exeter Chiefs |
| Wyn Jones | Prop | (1992-02-26)26 February 1992 (aged 25) | 5 | Scarlets |
| Samson Lee | Prop | (1992-11-30)30 November 1992 (aged 25) | 34 | Scarlets |
| Dillon Lewis | Prop | (1996-01-04)4 January 1996 (aged 22) | 2 | Cardiff Blues |
| Nicky Smith | Prop | (1994-04-07)7 April 1994 (aged 23) | 16 | Ospreys |
| Adam Beard | Lock | (1996-01-07)7 January 1996 (aged 22) | 2 | Ospreys |
| Bradley Davies | Lock | (1987-01-09)9 January 1987 (aged 31) | 57 | Ospreys |
| Seb Davies | Lock | (1996-05-15)15 May 1996 (aged 21) | 3 | Cardiff Blues |
| Cory Hill | Lock | (1992-02-10)10 February 1992 (aged 25) | 10 | Dragons |
| Alun Wyn Jones (c) | Lock | (1985-09-19)19 September 1985 (aged 32) | 113 | Ospreys |
| James Davies | Flanker | (1990-10-25)25 October 1990 (aged 27) | 0 | Scarlets |
| Ellis Jenkins | Flanker | (1993-04-29)29 April 1993 (aged 24) | 5 | Cardiff Blues |
| Josh Navidi | Flanker | (1990-12-30)30 December 1990 (aged 27) | 7 | Cardiff Blues |
| Aaron Shingler | Flanker | (1987-08-07)7 August 1987 (aged 30) | 13 | Scarlets |
| Justin Tipuric | Flanker | (1989-08-06)6 August 1989 (aged 28) | 52 | Ospreys |
| Taulupe Faletau | Number 8 | (1990-11-12)12 November 1990 (aged 27) | 70 | Bath |
| Ross Moriarty | Number 8 | (1994-04-18)18 April 1994 (aged 23) | 17 | Gloucester |
| Aled Davies | Scrum-half | (1992-07-19)19 July 1992 (aged 25) | 5 | Scarlets |
| Gareth Davies | Scrum-half | (1990-08-18)18 August 1990 (aged 27) | 27 | Scarlets |
| Rhys Webb | Scrum-half | (1988-12-09)9 December 1988 (aged 29) | 31 | Ospreys |
| Gareth Anscombe | Fly-half | (1991-05-10)10 May 1991 (aged 26) | 11 | Cardiff Blues |
| Dan Biggar | Fly-half | (1989-10-16)16 October 1989 (aged 28) | 60 | Ospreys |
| Rhys Patchell | Fly-half | (1993-05-17)17 May 1993 (aged 24) | 5 | Scarlets |
| Rhys Priestland | Fly-half | (1987-01-09)9 January 1987 (aged 31) | 50 | Bath |
| Hadleigh Parkes | Centre | (1987-10-05)5 October 1987 (aged 30) | 1 | Scarlets |
| Owen Watkin | Centre | (1996-10-12)12 October 1996 (aged 21) | 2 | Ospreys |
| Owen Williams | Centre | (1992-02-27)27 February 1992 (aged 25) | 3 | Gloucester |
| Scott Williams | Centre | (1990-10-10)10 October 1990 (aged 27) | 51 | Scarlets |
| Josh Adams | Wing | (1995-04-21)21 April 1995 (aged 22) | 0 | Worcester Warriors |
| Hallam Amos | Wing | (1994-09-24)24 September 1994 (aged 23) | 15 | Dragons |
| Alex Cuthbert | Wing | (1990-04-05)5 April 1990 (aged 27) | 47 | Cardiff Blues |
| Steff Evans | Wing | (1994-09-01)1 September 1994 (aged 23) | 5 | Scarlets |
| George North | Wing | (1992-04-13)13 April 1992 (aged 25) | 69 | Northampton Saints |
| Leigh Halfpenny | Fullback | (1988-12-22)22 December 1988 (aged 29) | 74 | Scarlets |
| Liam Williams | Fullback | (1991-04-09)9 April 1991 (aged 26) | 45 | Saracens |

### Call-ups

On 25 January, Rhys Webb was ruled out of the competition due to injury, Tomos Williams replaced Webb in the squad.
On 1 February, Scott Baldwin was released from the squad due to injury, ruling him out of the whole tournament. Ryan Elias was added as his replacement.
On 6 March, Rhodri Jones was drafted into the squad as an injury replacement for Wyn Jones.
| Player | Position | Date of birth (age) | Caps | Club/province |
| Ryan Elias | Hooker | (1995-01-07)7 January 1995 (aged 23) | 2 | Scarlets |
| Rhodri Jones | Prop | (1991-12-23)23 December 1991 (aged 26) | 15 | Ospreys |
| Tomos Williams | Scrum-half | (1995-01-01)1 January 1995 (aged 23) | 0 | Cardiff Blues |