This is a list of the complete squads for the 2011 Six Nations Championship, an annual rugby union tournament contested by the national rugby teams of England, France, Ireland, Italy, Scotland and Wales. Each country is entitled to name a squad of 39 players to contest the championship. They may also invite additional players along prior to the start of the championship, while the coach can call up replacement players if squad members suffer serious injury.

Martin Johnson announced a 33-man England squad for the 2011 Six Nations on 11 January.

Since the squad announcement, four players originally named have been ruled out for at least part of the Six Nations:

Head coach: Martin Johnson

Note: Flags indicate national union for the club/province as defined by World Rugby.

Marc Lièvremont announced a 30-man France squad for the 2011 Six Nations on 19 January.

Head coach: Marc Lièvremont

Note: Flags indicate national union for the club/province as defined by World Rugby.