W（21）
- Active Players
- W
W
- 63 Outfielder
- Wada, Koshiro
- Chiba Lotte Marines
- 49 Infielder
- Wakabayashi, Akihiro
- Hokkaido Nippon-Ham Fighters
- 59 Outfielder
- Wakabayashi, Gakuto
- Yomiuri Giants
- 39 Pitcher
- Wakamatsu, Naoki
- YOKOHAMA DeNA BAYSTARS
- 2 Catcher
- Wakatsuki, Kenya
- ORIX Buffaloes
- 20 Pitcher
- Wakui, Hideaki
- Chunichi Dragons
- 94 Pitcher
- Walters, Nash
- Chunichi Dragons
- 017 Pitcher (*)
- Wang, Yan-Cheng
- Tohoku Rakuten Golden Eagles
- 0 Outfielder
- Watanabe, Haruto
- ORIX Buffaloes
- 66 Infielder
- Watanabe, Kento
- Saitama Seibu Lions
- 00 Catcher
- Watanabe, Riku
- Fukuoka SoftBank Hawks
- 25 Infielder
- Watanabe, Ryo
- Hanshin Tigers
- 8 Outfielder
- Watanabe, Seiya
- Saitama Seibu Lions
- 31 Pitcher
- Watanabe, Shota
- Tohoku Rakuten Golden Eagles
- 48 Infielder
- Watanabe, Yoshiaki
- Tohoku Rakuten Golden Eagles
- 12 Pitcher
- Watanabe, Yutaro
- Saitama Seibu Lions
- 49 Infielder
- Watanabe, Yuto
- Hiroshima Toyo Carp
- 4 Outfielder
- Watarai, Ryuki
- YOKOHAMA DeNA BAYSTARS
- 60 Infielder
- Waters, RikaiJyumile
- Tohoku Rakuten Golden Eagles
- 62 Pitcher
- Wick, Rowan
- YOKOHAMA DeNA BAYSTARS
- 45 Pitcher
- Wingenter, Trey
- Saitama Seibu Lions