The following is a list of squads for each nation competing at the 2013 World Baseball Classic (WBC). The deadline for submitting provisional rosters was January 16, but teams had until February 20 to finalize their roster decisions. Provisional rosters were announced on January 17, and final rosters were announced on February 20. Injured players could be freely replaced before the team's first game. Once a team begins play, injured catchers can be replaced at any time, but other injured players cannot be replaced until the team advances to the next round of the tournament.