The 2023 World Baseball Classic (WBC) was an international professional baseball competition, composed of 20 competing nations, held from March 8 to March 21, 2023. It was the fifth iteration of the World Baseball Classic. The first-round hosts cities were Taichung, Tokyo, Phoenix, and Miami. The second-round hosts were Miami and Tokyo, and the final game was played in Miami.

Twenty teams competed in the 2023 World Baseball Classic (WBC). The tournament was expanded from 16 to 20 teams, with all teams that participated in the 2017 edition automatically qualifying, plus four additional spots. Participating nations had to submit their final 30-man rosters no later than February 7, 2023. WBC rules required teams to carry at least 14 pitchers and two catchers on their rosters. If applicable, the club listed is the club a player was with at the start of the tournament.

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Key Pos.PositionPPitcherCCatcherIFInfielderOFOutfielder

Pool A

Chinese Taipei announced their squad on 2023.

Manager: 70 Lin Yueh-ping

Coaches: Hitting 23 Peng Cheng-min, 91 Tseng Hao-jin, Pitching 0 Hsu Ming-chieh, First base and outfield 66 Chang Chien-ming, Third base 13 Chen Chiang-ho, Bench and catching 34 Kao Chih-kang, Bullpen 40 Chien-Ming Wang

Cuba announced their squad on January 25, 2023.

Manager: 6 Armando Johnson

Coaches: Bench 11 Germán Mesa, Batting 46 Orestes Kindelán, Pitching 24 Jose Elosegui, 99 Pedro Luis Lazo, First base 9 Armando Ferrer, Third base 39 Rafael Muñoz, Coach 37 Humberto Guevara

Italy announced their squad on January 26, 2023.

Manager: 31 Mike Piazza

Coaches: Bench 10 Blake Butera, Pitching 58 Michael Borzello, First base and infield 4 Jack Santora, Bullpen 50 Jason Simontacchi, Outfield 34 Michele Gerali, Coach 55 Joe Hsu, Third base and hitting 13 Chris Denorfia

Netherlands announced their squad on January 23, 2023.

Manager: 31 Hensley Meulens

Coaches: Hitting Tjerk Smeets, Pitching 28 Bert Blyleven, First base Gene Kingsale, Third base 44 Ben Thijssen, Bench 25 Andruw Jones, Bullpen Mike Harkey, Quality control Evert-Jan 't Hoen

Panama announced their squad on September 28, 2022.

Manager: 21 Luis Ortiz

Coaches: Bench 8 Luis Caballero, Hitting 4 Earl Agnoly, 76 Víctor Preciado, Pitching 73 Enrique Burgos, 14 Wilfredo Córdoba, First base Cirilo Cumberbatch. Bullpen 95 Hipólito Ortiz, Third base 44 Vicente Garibaldo

Pool B

Australia announced their squad on February 10, 2023.

Manager: 14 David Nilsson

Coaches: Bench 13 Shayne Watson, Hitting 32 Chris Adamson, Assistant hitting 3 Will Bradley, Pitching 33 Jim Bennett, First base 18 Michael Collins, Third base 19 Andrew Graham, Bullpen 27 Graeme Lloyd

PlayerNo.Pos.Date of birth (age)TeamLeagueBirthplace37 P Brisbane Bandits Australian Baseball League Kempsey, New South Wales54 P Sydney Blue Sox Australian Baseball League Blacktown, New South Wales61 P Cincinnati Reds (minors) Major League Baseball Auckland, New Zealand20 P Sydney Blue Sox Australian Baseball League Tamworth, New South Wales40 P Brisbane Bandits Australian Baseball League Brisbane, Queensland55 P Melbourne Aces Australian Baseball League Melbourne, Victoria25 P Melbourne Aces Australian Baseball League Canberra, Australian Capital Territory11 P Melbourne Aces Australian Baseball League Melbourne, Victoria22 P Adelaide Giants Australian Baseball League Perth, Western Australia59 P Detroit Tigers (minors) Major League Baseball Adelaide, South Australia30 P Perth Heat Australian Baseball League Perth, Western Australia56 P Arizona Diamondbacks (minors) Major League Baseball Perth, Western Australia39 P Seattle Mariners (minors) Major League Baseball Traralgon, Victoria21 P Adelaide Giants Australian Baseball League Sydney, New South Wales49 P Sydney Blue Sox Australian Baseball League Westmead, New South Wales26 P Adelaide Giants Australian Baseball League Sydney, New South Wales24 C Brisbane Bandits Australian Baseball League Brisbane, Queensland10 C Milwaukee Brewers (minors) Major League Baseball Perth, Western Australia48 C Adelaide Giants Australian Baseball League Adelaide, South Australia 9 C Canberra Cavalry Australian Baseball League Canberra, Australian Capital Territory58 IF Perth Heat Australian Baseball League Perth, Western Australia43 IF Melbourne Aces Australian Baseball League Melbourne, Victoria 7 IF Melbourne Aces Australian Baseball League Melbourne, Victoria 6 IF Kansas City Royals (minors) Major League Baseball Perth, Western Australia15 IF Adelaide Giants Australian Baseball League Geelong, Victoria 4 IF Brisbane Bandits Australian Baseball League Brisbane, Queensland52 IF Adelaide Giants Australian Baseball League Newcastle, New South Wales60 OF Perth Heat Australian Baseball League East London, South Africa17 OF Brisbane Bandits Australian Baseball League Ipswich, Queensland23 OF Perth Heat Australian Baseball League Perth, Western Australia 2 OF Los Angeles Angels Major League Baseball Brisbane, Queensland

Japan announced their squad on January 26, 2023. Seiya Suzuki withdrew due to oblique injury on February 28, then added Taisei Makihara as a replacement member of Suzuki.

Manager: 89 Hideki Kuriyama

Coaches: Bench 90 Kazuyuki Shirai, Hitting 77 Sadaaki Yoshimura, First base 87 Masaji Shimizu, Pitching 81 Masato Yoshii, Bullpen 75 Kazuyuki Atsuzawa, Infield 79 Noriyuki Shiroishi, Catching 74 Yoshinori Murata

PlayerNo.Pos.Date of birth (age)TeamLeagueBirthplace 11 P San Diego Padres Major League Baseball Habikino, Osaka 12 P Yomiuri GiantsNippon Professional Baseball Miyakonojō, Miyazaki 13 P Tohoku Rakuten Golden EaglesNippon Professional Baseball Aoba-ku, Yokohama, Kanagawa 14 P Chiba Lotte MarinesNippon Professional Baseball Rikuzentakata, Iwate 15 P Yomiuri GiantsNippon Professional Baseball Taka, Hyōgo 16 P Los Angeles AngelsMajor League Baseball Ōshū, Iwate 17 P Hokkaido Nippon-Ham FightersNippon Professional Baseball Shikabe, Hokkaido 18 P Orix BuffaloesNippon Professional Baseball Bizen, Okayama 20 P Hiroshima Toyo CarpNippon Professional Baseball Aisai, Aichi 21 P Yokohama DeNA BayStarsNippon Professional Baseball Kitakyushu, Fukuoka 22 P Hanshin TigersNippon Professional Baseball Owase, Mie 26 P Orix BuffaloesNippon Professional Baseball Koshigaya, Saitama 28 P Chunichi DragonsNippon Professional Baseball Owariasahi, Aichi 29 P Orix BuffaloesNippon Professional Baseball Ginowan, Okinawa 47 P Tokyo Yakult SwallowsNippon Professional Baseball Kameoka, Kyoto 63 P Orix BuffaloesNippon Professional Baseball Kaga, Ishikawa 10 C Fukuoka SoftBank Hawks Nippon Professional Baseball Ōita, Ōita 24 C Yomiuri GiantsNippon Professional Baseball Naha, Okinawa 27 C Tokyo Yakult SwallowsNippon Professional Baseball Ōno, Fukui 1 IF Tokyo Yakult SwallowsNippon Professional Baseball Toyooka, Hyōgo 2 IF Saitama Seibu LionsNippon Professional Baseball Ōita, Ōita 3 IF Yokohama DeNA BayStarsNippon Professional Baseball Nakano, Nagano 5 IF Fukuoka SoftBank HawksNippon Professional Baseball Kurume, Fukuoka 7 IF Hanshin Tigers Nippon Professional Baseball Tendō, Yamagata 25 IF Yomiuri Giants Nippon Professional Baseball Gojō, Nara 33 IF Saitama Seibu LionsNippon Professional Baseball Naha, Okinawa 55 IF Tokyo Yakult SwallowsNippon Professional Baseball Kumamoto, Kumamoto 8 OF Fukuoka SoftBank HawksNippon Professional Baseball Midori-ku, Chiba, Chiba 9 OF Fukuoka SoftBank HawksNippon Professional Baseball Ōta, Gunma 23 OF St. Louis CardinalsMajor League Baseball El Segundo, California, United States 34 OF Boston Red SoxMajor League Baseball Fukui, Fukui

South Korea announced their squad on January 4, 2023.

Manager: 71 Lee Kang-chul

Coaches: Hitting 77 Kim Ki-tai, Third base 72 Kim Min-ho, First base 76 Kim Min-jae, Catching 70 Jin Kab-yong, Pitching 91 Jong Hyun-wook, Bullpen 81 Bae Young-soo, Quality control 88 Shim Jae-hak

PlayerNo.Pos.Date of birth (age)TeamLeagueBirthplaceGo Woo-suk19P LG Twins KBO League IncheonGwak Been61P Doosan Bears KBO League SeoulJeong Cheol-won65P Doosan Bears KBO League AnsanJung Woo-young18P LG Twins KBO League SeoulKim Kwang-hyun29P SSG Landers KBO League SeoulKim Won-jung34P Lotte GiantsKBO League GwangjuKim Yun-sik57P LG Twins KBO League GwangjuKo Young-pyo1P KT Wiz KBO League NajuKoo Chang-mo59P NC Dinos KBO League CheonanLee Eui-lee48P Kia Tigers KBO League GwangjuLee Yong-chan45P NC Dinos KBO League SeoulPark Se-woong21P Lotte Giants KBO League DaeguSo Hyeong-jun30P KT Wiz KBO League SuwonWon Tae-in46P Samsung Lions KBO League DaeguYang Hyeon-jong54P Kia Tigers KBO League GwangjuLee Ji-young56C Kiwoom Heroes KBO League IncheonYang Eui-ji25C Doosan Bears KBO League GwangjuChoi Jeong14IF SSG Landers KBO League Icheon11IF St. Louis Cardinals Major League Baseball Pontiac, MichiganKang Baek-ho50IF KT Wiz KBO League IncheonKim Ha-seong7IF San Diego Padres Major League Baseball BucheonKim Hye-seong2IF Kiwoom Heroes KBO League GoyangOh Ji-hwan10IF LG Twins KBO League GunsanPark Byung-ho52IF KT Wiz KBO League SeoulChoi Ji-hoon53OF SSG LandersKBO League GwangjuKim Hyun-soo22OF LG Twins KBO League SeoulLee Jung-hoo51OF Kiwoom Heroes KBO League NagoyaNa Sung-bum47OF Kia Tigers KBO League GwangjuPark Hae-min17OF LG TwinsKBO League SeoulPark Kun-woo37OF NC Dinos KBO League Seoul

China announced their squad on February 10, 2023.

Manager: 41 Dean Treanor

Coaches: Defensive 86 Chen Biao, Hitting and catching 56 Wang Wei, Infield 25 Chen Jiaji, Third base 16 Tarrik Brock, Baserunning 51 Zhu Xudong, Outfield 24 Chen Yanpeng, 3 Du Nan

PlayerNo.Pos.Date of birth (age)TeamLeagueBirthplace38 P Los Angeles Angels (minors) Major League Baseball Singapore, Singapore11 P Shanghai Golden Eagles China National Baseball League Bengbu, AnhuiJu Kwon68 P KT Wiz KBO League Jilin ProvinceLin Qiang32 P Henan Elephants China National Baseball LeagueQi Xin12 P Beijing Tigers China National Baseball League BeijingSu Changlong58 P Tianjin Lions China National Baseball League TianjinSun Hailong18 P Shanghai Golden Eagles China National Baseball League Wang Weiyi13 P Jiangsu Pegasus China National Baseball League ShaanxiWang Xiang42 P Shanghai Golden Eagles China National Baseball League ShanghaiWang Yuchen 5 P Shanghai Golden Eagles China National Baseball League Yi Jian15 P Guangdong Leopards China National Baseball League LangfangZhang Hao59 P Sichuan Dragons China National Baseball League SichuanZhao Fuyang17 P Jiangsu Pegasus China National Baseball League JiangsuZheng Chaoqun23 P Jiangsu Pegasus China National Baseball League JiangsuChen Chen33 C Jiangsu Pegasus China National Baseball LeagueLi Ning 9 C Shanghai Golden Eagles China National Baseball League Inner MongoliaLi Yifan69 C Beijing Tigers China National Baseball League Lu Yun 2 C Beijing Tigers China National Baseball LeagueCao Jie20 IF Jiangsu Pegasus China National Baseball League Jiangsu21 IF Kansas City, MissouriChen Chen19 IF Jiangsu Pegasus China National Baseball League JiangsuLuan Chenchen52 IF Jiangsu Pegasus China National Baseball League JiangsuKou Yongkang 8 IF Shanghai Eagles China National Baseball League SuzhouYang Jin 7 IF Shanghai Eagles China National Baseball League ShanghaiXudong Zhu51 IF GuangdongHan Xiao22 OF Shanghai Eagles China National Baseball LeagueLiang Pei 6 OF Beijing Tigers China National Baseball LeagueLiang Rongji27 OF MLB Development Center China Luo Jinjun29 OF Guangdong Leopards China National Baseball League GuangdongLyu Yuheng 1 OF Beijing Tigers China National Baseball League 10 OF HitachiJapanese Industrial League Kyoto City, Kyoto

Czech Republic announced their squad on September 13, 2022.

Manager: 13 Pavel Chadim

Coaches: Quality control Joe Truesdale, Pitching 22 John Hussey, Hitting Alex Derhak, Third base 17 David Winkler, First base Michael Griffin, Bullpen 25 Dusan Randak, Catching David Neveril