The following is a list of squads for each nation competing at 2006 World Baseball Classic. The tournament began on March 3 and the final took place on March 20, 2006.
The teams listed on the country's roster is the team the player was with while the tournament took place.
China Roster[1]
Manager: 
Jim Lefebvre
Coaches: Bruce Hurst (Pitching)
Chinese Taipei Roster[2]
Manager: Lin Hua-wei (林華韋)
Coaches: Hung I-chung (洪一中), Yeh Chih-shien (葉志仙), Lu Ming-tsu (呂明賜), Wu Fu-lien (吳復連), Hsieh Chang-heng (謝長亨)
Manager: 89 – Sadaharu Oh (王貞治)
Coaches: 84 – Kazuhiro Takeda (武田一浩), 85 – Hatsuhiko Tsuji (辻発彦), 86 – Yoshitaka Katori (鹿取義隆), 87 – Yasunori Oshima (大島康徳), 88 – Sumio Hirota (弘田澄男)
Manager: Kim In-sik (김인식)
Coaches: 70 — Kim Jae-bak (hitting coach), 90 — Sun Dong-yol (pitching coach), 80 — Cho Bum-hyun (battery coach), 75 — Ryu Joong-il (defensive coach), 76 — Ryu Ji-hyun (base coach)
Manager: Ernie Whitt (First base coach with the Toronto Blue Jays)
Coaches: Denis Boucher (Pitching Coach), Tim Leiper (Coach), Rob Ducey (Coach), Larry Walker (Coach), Tommy Craig (Trainer)
Manager: Francisco Estrada
Pitching coaches: Fernando Valenzuela, Ted Higuera
Pitching coach: Lee Smith
Manager: Buck Martinez
Coaches: Marcel Lachemann, Davey Johnson, John McLaren, Reggie Smith
Manager: Higinio Vélez
Manager: Robert Eenhoorn
Manager: Anibal Reluz
Manager: José Oquendo
Manager: Jon Deeble
Manager: Manny Acta
Manager: Matt Galante
Manager: Luis Sojo
Coaches: Dave Concepción, Oscar Escobar, Roberto Espinoza, Omar Malavé, Luis Salazar