There are 10 Japanese MLB players played for the Boston Red Sox

Naoyuki
Uwasawa

RHP Boston Red Sox

(Hokkaido Nippon Ham Fighters, Tampa Bay Rays, Boston Red Sox )

上沢直之 (うわさわ・なおゆき)

Bats: R Throws: R

Current Age 30

(187cm, 88kg)

MLB Debut: Not Yet

Masataka
Yoshida

OF Boston Red Sox

(ORIX Buffaloes, Boston Red Sox )

吉田正尚 (よしだ・まさたか)

Bats: L Throws: R

Current Age 30

5-8, 192lb (173cm, 87kg)

MLB Debut:
2023-03-30 (29)

Hirokazu
Sawamura

RHP Chiba Lotte Marines

(Yomiuri Giants, Chiba Lotte Marines, Boston Red Sox )

澤村拓一 (さわむら・ひろかず)

Bats: R Throws: R

Current Age 36

6-0, 212lb (183cm, 96kg)

MLB Debut:
2021-04-02 (32)

Junichi
Tazawa

RHP Boston Red Sox

(Boston Red Sox , Miami Marlins, Los Angeles Angels)

田沢純一 (たざわ・じゅんいち)

Bats: R Throws: R

Current Age 37

5-11, 200lb (180cm, 90kg)

MLB Debut:
2009-08-07 (23)

Koji
Uehara

RHP Boston Red Sox

(Baltimore Orioles, Texas Rangers, Boston Red Sox , Chicago Cubs, Yomiuri Giants)

上原浩治 (うえはら・こうじ)

Bats: R Throws: R

Current Age 49

6-2, 195lb (188cm, 88kg)

MLB Debut:
2009-04-08 (34)

Daisuke
Matsuzaka

RHP Boston Red Sox

(Saitama Seibu Lions, Boston Red Sox , New York Mets, Fukuoka SoftBank Hawks, Chunichi Dragons)

松坂大輔 (まつざか・だいすけ)

Bats: R Throws: R

Current Age 43

6-0, 205lb (183cm, 92kg)

MLB Debut:
2007-04-05 (26)

Hideki
Okajima

LHP Boston Red Sox

(Boston Red Sox , Oakland Athletics, Yomiuri Giants, Hokkaido Nippon Ham Fighters, Fukuoka SoftBank Hawks, Yokohama DeNA BayStars)

岡島秀樹 (おかじま・ひでき)

Bats: L Throws: L

Current Age 48

6-1, 195lb (185cm, 88kg)

MLB Debut:
2007-04-02 (31)

Takashi
Saito

RHP Los Angeles Dodgers

(Los Angeles Dodgers, Boston Red Sox , Atlanta Braves, Milwaukee Brewers, Arizona Diamondbacks, Yokohama DeNA BayStars, Tohoku Rakuten Golden Eagles)

斎藤隆 (さいとう・たかし)

Bats: L Throws: R

Current Age 54

6-2, 200lb (188cm, 90kg)

MLB Debut:
2006-04-09 (36)

Tomokazu
Ohka

RHP Boston Red Sox

(Boston Red Sox , Montreal Expos, Washington Nationals, Milwaukee Brewers, Toronto Blue Jays, Cleveland Indians, Yokohama DeNA BayStars)

大家友和 (おおか・ともかず)

Bats: S Throws: R

Current Age 48

6-1, 205lb (185cm, 92kg)

MLB Debut:
1999-07-19 (23)

Hideo
Nomo

RHP Los Angeles Dodgers

(Los Angeles Dodgers, New York Mets, Osaka Kintetsu Buffaloes, Milwaukee Brewers, Detroit Tigers, Boston Red Sox , Tampa Bay Rays, Kansas City Royals)

野茂英雄 (のも・ひでお)

Bats: R Throws: R

Current Age 55

6-2, 210lb (188cm, 95kg)

MLB Debut:
1995-05-02 (26)