| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Maeda, Hayato | 2B | Yomiuri Giants | 21 | 04/02/1993 | Ishinomaki | JPN | Right | Right | 6' 3" | 215 lbs | - |
| Maeda, Keisuke | RF | Free Agent | 24 | 12/29/1990 | Tokyo | JPN | Left | Left | 6' 1" | 150 lbs | - |
| Maeda, Minoru | RF | Free Agent | 22 | 08/09/1992 | Osaka | JPN | Right | Right | 6' 1" | 195 lbs | - |
| Maekawa, Tashiro | MR | Free Agent | 17 | 03/26/1997 | Tokyo | JPN | Right | Left | 6' 2" | 205 lbs | - |
| Makino, Kuniyuki | LF | Free Agent | 29 | 03/30/1985 | Tokyo | JPN | Left | Left | 6' 0" | 200 lbs | - |
| Makino, Tsuginori | MR | Yomiuri Giants | 18 | 03/18/1996 | Nakashibetsu | JPN | Right | Right | 6' 5" | 205 lbs | - |
| Marubeni, Momoru | SP | Hanshin Tigers | 36 | 11/15/1978 | Iwaki | JPN | Right | Right | 6' 0" | 185 lbs | - |
| Maruyama, Toyokazu | SP | Free Agent | 18 | 06/04/1996 | Okazaki | JPN | Right | Right | 6' 1" | 215 lbs | - |
| Masuda, Kamatari | LF | Free Agent | 29 | 01/29/1985 | Kunitomi | JPN | Right | Right | 6' 2" | 200 lbs | - |
| Masuda, Makoto | LF | Free Agent | 21 | 03/19/1993 | Gifu | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Masuda, Seinosuke | LF | Free Agent | 21 | 01/12/1993 | Higashiosaka | JPN | Left | Left | 5' 10" | 190 lbs | - |
| Masuda, Takane | C | Free Agent | 32 | 12/19/1982 | Kishiwada | JPN | Left | Right | 6' 3" | 218 lbs | - |
| Masuda, Yakamochi | RF | Free Agent | 31 | 01/28/1983 | Toyohashi | JPN | Left | Right | 6' 3" | 202 lbs | - |
| Matsubara, Nakazo | 1B | Free Agent | 31 | 10/01/1983 | Kokubunji | JPN | Right | Right | 6' 0" | 198 lbs | - |
| Matsubara, Natsume | CF | ORIX Buffaloes | 36 | 12/19/1978 | Narita | JPN | Switch | Right | 6' 1" | 175 lbs | - |
| Matsuda, Morihiro | LF | Yomiuri Giants | 23 | 02/05/1991 | Numazu | JPN | Right | Right | 6' 0" | 205 lbs | - |
| Matsuda, Yasuhiro | RF | Yokohama Bay Stars | 31 | 12/26/1983 | Abiko | JPN | Switch | Left | 6' 2" | 190 lbs | - |
| Matsuda, Yoshifumi | 3B | Free Agent | 31 | 01/21/1983 | Okazaki | JPN | Right | Right | 5' 9" | 194 lbs | - |
| Matsuda, Yoshihito | 1B | Tohoku Rakuten Golden Eagles | 35 | 03/30/1979 | Mutsu | JPN | Left | Left | 6' 1" | 230 lbs | - |
| Matsui, Joji | 1B | Free Agent | 24 | 01/23/1990 | Hiroshima | JPN | Right | Right | 6' 1" | 200 lbs | - |
| Matsui, Kiminobu | RF | Saitama Seibu Lions | 19 | 09/13/1995 | Hamamatsu | JPN | Left | Left | 6' 0" | 175 lbs | - |
| Matsui, Takamori | 1B | Free Agent | 31 | 07/27/1983 | Asaka | JPN | Right | Right | 6' 1" | 190 lbs | - |
| Matsui, Tanyu | LF | Saitama Seibu Lions | 30 | 05/30/1984 | Fuchu | JPN | Right | Right | 6' 0" | 205 lbs | - |
| Matsui, Yusuke | MR | Free Agent | 34 | 08/10/1980 | Komaki | JPN | Right | Right | 6' 1" | 221 lbs | - |
| Matsumoto, Hideaki | C | Free Agent | 35 | 12/04/1979 | Yokohama | JPN | Switch | Right | 6' 0" | 220 lbs | - |
| Matsumoto, Hirofumi | SP | Free Agent | 37 | 11/20/1977 | Nagano | JPN | Right | Right | 6' 0" | 197 lbs | - |
| Matsumoto, Hirokazu | 1B | Hiroshima Toyo Carp | 23 | 02/18/1991 | Murayama | JPN | Left | Left | 6' 1" | 215 lbs | - |
| Matsumoto, Kanbe | 1B | Free Agent | 31 | 03/11/1983 | Funabashi | JPN | Right | Right | 6' 5" | 220 lbs | - |
| Matsumoto, Nobuharu | 1B | Free Agent | 24 | 03/08/1990 | Komono | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Matsumoto, Ryuichi | 1B | Free Agent | 32 | 01/09/1982 | Satte | JPN | Right | Right | 6' 1" | 215 lbs | - |
| Matsumoto, Sadao | RF | Free Agent | 27 | 11/19/1987 | Kure | JPN | Switch | Right | 5' 8" | 205 lbs | - |
| Matsumoto, Sozui | SP | Free Agent | 19 | 12/21/1995 | Nankoku | JPN | Left | Left | 6' 0" | 235 lbs | - |
| Matsumoto, Tabito | LF | Yomiuri Giants | 35 | 01/03/1979 | Kyoto | JPN | Right | Right | 5' 10" | 200 lbs | - |
| Matsumoto, Tatsui | 3B | Free Agent | 23 | 11/22/1991 | Kiryu | JPN | Right | Right | 6' 2" | 225 lbs | - |
| Matsumoto, Tobei | CF | Free Agent | 19 | 01/28/1995 | Masaki | JPN | Left | Left | 6' 1" | 160 lbs | - |
| Matsumoto, Ton | CF | Chiba Lotte Marines | 27 | 07/12/1987 | Kameoka | JPN | Right | Right | 6' 0" | 185 lbs | - |
| Matsumoto, Tsumemasa | 1B | Free Agent | 19 | 01/30/1995 | Sagamihara | JPN | Right | Right | 6' 3" | 210 lbs | - |
| Matsumoto, Tsunayoshi | RF | Tokyo Yakult Swallows | 26 | 12/17/1988 | Tochigi | JPN | Switch | Left | 6' 3" | 230 lbs | - |
| Matsumoto, Yasutoki | MR | Chiba Lotte Marines | 23 | 10/06/1991 | Yoshikawa | JPN | Right | Right | 6' 1" | 215 lbs | - |
| Matsumoto, Yoshitaka | C | Free Agent | 35 | 01/25/1979 | Warabi | JPN | Switch | Right | 6' 1" | 208 lbs | - |
| Matsuo, Hirokichi | 1B | Free Agent | 35 | 02/24/1979 | Togitsu | JPN | Left | Left | 6' 1" | 201 lbs | - |
| Matsuo, Hoshi | MR | Free Agent | 22 | 01/09/1992 | Yaizu | JPN | Right | Left | 6' 0" | 205 lbs | - |
| Matsuo, Ieyoshi | C | Hiroshima Toyo Carp | 32 | 10/16/1982 | Sagae | JPN | Left | Right | 6' 0" | 205 lbs | - |
| Matsuo, Mitsuzuka | 1B | Hanshin Tigers | 19 | 09/10/1995 | Yokohama | JPN | Left | Left | 6' 0" | 215 lbs | - |
| Matsuo, Shingen | 1B | Free Agent | 30 | 06/03/1984 | Kishiwada | JPN | Right | Right | 6' 2" | 218 lbs | - |
| Matsuo, Shunsho | RF | Free Agent | 24 | 02/17/1990 | Izumo | JPN | Right | Right | 6' 0" | 175 lbs | - |
| Matsuo, Takuro | CF | Free Agent | 20 | 07/25/1994 | Minakuchi | JPN | Switch | Right | 6' 0" | 210 lbs | - |
| Matsuoka, Arata | MR | Free Agent | 36 | 02/13/1978 | Sendai | JPN | Left | Left | 6' 0" | 188 lbs | - |
| Matsuoka, Hyobe | CF | Free Agent | 25 | 03/04/1989 | Kanuma | JPN | Left | Left | 6' 0" | 220 lbs | - |
| Matsuoka, Kazuki | MR | Free Agent | 30 | 10/07/1984 | Yawata | JPN | Right | Right | 6' 0" | 178 lbs | - |
| Matsuoka, Nakazo | MR | Free Agent | 35 | 04/06/1979 | Hyuga | JPN | Right | Right | 6' 7" | 210 lbs | - |
| Matsuoka, Sadakuno | RF | Free Agent | 27 | 10/12/1987 | Kariya | JPN | Left | Left | 5' 10" | 205 lbs | - |
| Matsuoka, Shinji | SP | Yokohama Bay Stars | 30 | 11/13/1984 | Tokyo | JPN | Right | Right | 6' 5" | 215 lbs | - |
| Matsuoka, Shuji | 2B | Yomiuri Giants | 27 | 01/29/1987 | Tokyo | JPN | Right | Right | 6' 2" | 145 lbs | - |
| Matsuoka, Toshikazu | 1B | Free Agent | 24 | 07/23/1990 | Godo | JPN | Right | Right | 6' 0" | 200 lbs | - |
| Matsushita, Kitahachi | C | Free Agent | 23 | 07/21/1991 | Yamato | JPN | Right | Right | 6' 3" | 200 lbs | - |
| Matsushita, Mamoru | LF | Free Agent | 22 | 05/03/1992 | Nishinomiya | JPN | Left | Left | 5' 10" | 195 lbs | - |
| Matsushita, Toyoshige | CF | Chunichi Dragons | 35 | 09/21/1979 | Enzan | JPN | Switch | Right | 6' 0" | 210 lbs | - |
| Matsushita, Yoriyoshi | LF | Free Agent | 29 | 06/20/1985 | Fujinomiya | JPN | Left | Left | 6' 0" | 199 lbs | - |
| Matsuura, Akihisa | SP | Free Agent | 30 | 11/09/1984 | Funabashi | JPN | Right | Right | 6' 0" | 229 lbs | - |
| Matsuura, Eisaku | SS | Chunichi Dragons | 32 | 03/26/1982 | Hiroshima | JPN | Left | Right | 6' 1" | 220 lbs | - |
| Matsuura, Junji | LF | Free Agent | 32 | 01/27/1982 | Kurume | JPN | Left | Left | 6' 4" | 179 lbs | - |
| Matsuura, Junnosuke | 3B | Free Agent | 22 | 12/10/1992 | Tokyo | JPN | Right | Right | 5' 8" | 200 lbs | - |
| Matsuura, Takamasa | SS | Free Agent | 21 | 06/29/1993 | Shimonoseki | JPN | Right | Right | 6' 0" | 180 lbs | - |
| Memoto, Eichiro | SS | Chiba Lotte Marines | 29 | 05/15/1985 | Tokyo | JPN | Right | Right | 6' 1" | 212 lbs | - |
| Memoto, Hidehira | CF | Free Agent | 27 | 07/15/1987 | Nagoya | JPN | Right | Right | 6' 1" | 194 lbs | - |
| Memoto, Hyotaru | LF | Free Agent | 26 | 06/15/1988 | Bibai | JPN | Left | Left | 6' 0" | 215 lbs | - |
| Memoto, Seinosuke | 1B | Free Agent | 19 | 07/21/1995 | Fukushima | JPN | Right | Right | 5' 8" | 180 lbs | - |
| Minami, Atsushi | MR | Chunichi Dragons | 34 | 07/04/1980 | Nishinomiya | JPN | Left | Right | 6' 5" | 220 lbs | - |
| Minami, Kakuzo | 3B | Free Agent | 28 | 04/30/1986 | Haramachi | JPN | Right | Right | 6' 0" | 207 lbs | - |
| Minami, Kanko | 1B | Free Agent | 22 | 07/24/1992 | Hachioji | JPN | Right | Right | 6' 3" | 210 lbs | - |
| Minami, Katsuyoshi | 1B | Free Agent | 31 | 07/02/1983 | Sakai | JPN | Right | Right | 6' 1" | 192 lbs | - |
| Minami, Mitsuo | C | Free Agent | 18 | 03/14/1996 | Kyoto | JPN | Right | Right | 5' 9" | 205 lbs | - |
| Minami, Tokimasa | 1B | Yomiuri Giants | 35 | 03/15/1979 | Kitsuki | JPN | Left | Left | 6' 4" | 205 lbs | - |
| Miura, Hidehira | CF | Free Agent | 20 | 10/25/1994 | Tokyo | JPN | Right | Left | 6' 2" | 210 lbs | - |
| Miura, Hoshi | 1B | Free Agent | 35 | 04/15/1979 | Okegawa | JPN | Right | Right | 6' 1" | 179 lbs | - |
| Miura, Kosaku | LF | Free Agent | 33 | 04/19/1981 | Uwajima | JPN | Switch | Right | 6' 5" | 201 lbs | - |
| Miura, Seinosuke | CF | Free Agent | 32 | 07/15/1982 | Isesaki | JPN | Right | Right | 6' 0" | 221 lbs | - |
| Miura, Shizue | C | Free Agent | 17 | 12/01/1997 | Takamatsu | JPN | Switch | Right | 6' 1" | 200 lbs | - |
| Miura, Takashi | SP | Free Agent | 32 | 03/02/1982 | Iwaki | JPN | Right | Right | 6' 1" | 204 lbs | - |
| Miura, Tokaji | MR | Free Agent | 36 | 11/27/1978 | Tahara | JPN | Left | Left | 6' 2" | 174 lbs | - |
| Miyakawa, Hoshi | MR | Free Agent | 23 | 04/27/1991 | Sagamihara | JPN | Right | Right | 6' 3" | 205 lbs | - |
| Miyakawa, Koji | C | Free Agent | 23 | 06/23/1991 | Tomakomai | JPN | Right | Right | 5' 11" | 200 lbs | - |
| Miyakawa, Kuniyuki | MR | Tohoku Rakuten Golden Eagles | 25 | 01/30/1989 | Kariya | JPN | Left | Left | 6' 1" | 200 lbs | - |
| Miyake, Tadashi | 1B | Free Agent | 22 | 12/22/1992 | Tarui | JPN | Left | Right | 5' 11" | 200 lbs | - |
| Miyake, Taizo | 2B | Saitama Seibu Lions | 32 | 09/06/1982 | Sapporo | JPN | Right | Right | 5' 9" | 202 lbs | - |
| Miyake, Toyokazu | SS | Free Agent | 27 | 12/31/1987 | Yawatahama | JPN | Right | Right | 6' 2" | 175 lbs | - |
| Miyake, Yaichiro | C | Tohoku Rakuten Golden Eagles | 29 | 02/11/1985 | Sapporo | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Miyamoto, Kichibei | 2B | Free Agent | 37 | 03/05/1977 | Takizawa | JPN | Right | Right | 5' 10" | 190 lbs | - |
| Miyamoto, Makoto | RF | Hokkaido Nippon-Ham Fighters | 20 | 10/26/1994 | Ibaraki | JPN | Left | Left | 6' 3" | 195 lbs | - |
| Miyamoto, Yasutoki | SP | Free Agent | 33 | 12/14/1981 | Odate | JPN | Right | Right | 6' 4" | 192 lbs | - |
| Miyata, Nobuatsu | LF | Hiroshima Toyo Carp | 21 | 03/30/1993 | Yokohama | JPN | Right | Right | 6' 0" | 200 lbs | - |
| Miyata, Nobuhito | 3B | Free Agent | 24 | 09/29/1990 | Tokyo | JPN | Right | Right | 6' 1" | 210 lbs | - |
| Miyata, Takiji | CF | Free Agent | 30 | 07/07/1984 | Himeji | JPN | Switch | Right | 5' 10" | 197 lbs | - |
| Miyazaki, Eiichi | SP | ORIX Buffaloes | 18 | 12/17/1996 | Wakayama | JPN | Left | Left | 6' 0" | 190 lbs | - |
| Miyazaki, Kinnosuke | LF | Chunichi Dragons | 32 | 11/13/1982 | Kanoya | JPN | Left | Left | 5' 11" | 217 lbs | - |
| Miyazaki, Kuniaki | LF | Hokkaido Nippon-Ham Fighters | 31 | 12/22/1983 | Settsu | JPN | Right | Right | 6' 3" | 230 lbs | - |
| Miyazaki, Narahiko | SP | Tohoku Rakuten Golden Eagles | 34 | 04/20/1980 | Osaka | JPN | Right | Right | 6' 2" | 220 lbs | - |
| Miyazaki, Noburo | LF | Free Agent | 31 | 10/23/1983 | Kyoto | JPN | Switch | Right | 6' 2" | 223 lbs | - |
| Miyazaki, Ryutaro | RF | Hokkaido Nippon-Ham Fighters | 36 | 06/28/1978 | Shimizu | JPN | Switch | Left | 5' 8" | 185 lbs | - |
| Miyazaki, Seiryo | C | Hokkaido Nippon-Ham Fighters | 19 | 07/26/1995 | Ayase | JPN | Right | Right | 6' 3" | 215 lbs | - |
| Miyazaki, Soshu | SS | Free Agent | 30 | 03/18/1984 | Nasu | JPN | Right | Right | 6' 0" | 186 lbs | - |
| Mizoguchi, Kensaku | 2B | Fukuoka SoftBank Hawks | 23 | 03/17/1991 | Fukuoka | JPN | Right | Right | 6' 0" | 190 lbs | - |
| Mizuno, Hidekazu | 2B | Free Agent | 27 | 08/12/1987 | Shimosuwa | JPN | Right | Right | 5' 8" | 205 lbs | - |
| Mizuno, Takechi | RF | Free Agent | 34 | 01/23/1980 | Inzai | JPN | Right | Right | 6' 2" | 194 lbs | - |
| Mizuno, Toshikasu | RF | Free Agent | 33 | 07/31/1981 | Mito | JPN | Left | Left | 6' 1" | 196 lbs | - |
| Mizutani, Juro | 1B | Free Agent | 27 | 04/11/1987 | Isesaki | JPN | Right | Right | 6' 1" | 210 lbs | - |
| Mizutani, Ton | 1B | Free Agent | 21 | 09/10/1993 | Hachioji | JPN | Switch | Right | 6' 0" | 205 lbs | - |
| Mochizuki, Hirohisa | RF | Free Agent | 37 | 07/24/1977 | Koshigaya | JPN | Left | Left | 6' 0" | 197 lbs | - |
| Momotani, Yoshikazu | MR | Free Agent | 23 | 06/22/1991 | Sapporo | JPN | Right | Right | 5' 10" | 190 lbs | - |
| Mori, Eichiro | 3B | Hanshin Tigers | 23 | 02/13/1991 | Sanda | JPN | Right | Right | 5' 11" | 185 lbs | - |
| Mori, Hiroshi | SS | Free Agent | 19 | 02/15/1995 | Obu | JPN | Left | Right | 6' 0" | 150 lbs | - |
| Mori, Motoki | SS | Hanshin Tigers | 27 | 08/14/1987 | Tokyo | JPN | Left | Right | 6' 0" | 210 lbs | - |
| Mori, Nobukazu | C | Free Agent | 31 | 06/02/1983 | Kani | JPN | Right | Right | 6' 0" | 206 lbs | - |
| Mori, Ogai | LF | Free Agent | 27 | 12/27/1987 | Kyoto | JPN | Right | Right | 6' 0" | 215 lbs | - |
| Mori, Taizo | CF | Hanshin Tigers | 28 | 10/22/1986 | Dazaifu | JPN | Switch | Right | 6' 1" | 215 lbs | - |
| Mori, Takamasa | 2B | Tokyo Yakult Swallows | 27 | 05/14/1987 | Tokyo | JPN | Switch | Right | 6' 0" | 200 lbs | - |
| Mori, Yoriyoshi | MR | Free Agent | 37 | 11/24/1977 | Fuji | JPN | Left | Left | 6' 1" | 224 lbs | - |
| Mori, Yoshitake | 1B | Fukuoka SoftBank Hawks | 29 | 04/01/1985 | Toyoake | JPN | Right | Right | 6' 5" | 225 lbs | - |
| Moriguchi, Yodo | SP | Hiroshima Toyo Carp | 25 | 08/14/1989 | Kobe | JPN | Right | Right | 6' 8" | 215 lbs | - |
| Morita, Hideyoshi | 1B | Free Agent | 26 | 02/04/1988 | Kitaibaraki | JPN | Right | Right | 6' 2" | 200 lbs | - |
| Morita, Hitoshi | SP | Free Agent | 35 | 12/16/1979 | Hitachi | JPN | Left | Right | 6' 2" | 207 lbs | - |
| Morita, Iwao | CL | Hiroshima Toyo Carp | 25 | 09/11/1989 | Aomori | JPN | Left | Left | 5' 8" | 180 lbs | - |
| Morita, Kenkichi | C | ORIX Buffaloes | 20 | 03/11/1994 | Iwakuni | JPN | Right | Right | 5' 11" | 215 lbs | - |
| Morita, Shoichi | LF | Free Agent | 34 | 06/08/1980 | Yoshida | JPN | Right | Right | 6' 1" | 220 lbs | - |
| Motsuzuki, Izo | 2B | Free Agent | 28 | 04/27/1986 | Kaizuka | JPN | Right | Right | 6' 1" | 213 lbs | - |
| Motsuzuki, Kazuo | 2B | Free Agent | 33 | 09/26/1981 | Yokohama | JPN | Right | Right | 6' 0" | 187 lbs | - |
| Motsuzuki, Ryunosuke | CL | Saitama Seibu Lions | 31 | 07/01/1983 | Kagoshima | JPN | Switch | Right | 6' 0" | 180 lbs | - |
| Motsuzuki, Terumoto | MR | Free Agent | 34 | 09/27/1980 | Sagamihara | JPN | Left | Left | 6' 2" | 207 lbs | - |
| Murakami, Akinori | MR | Free Agent | 20 | 09/03/1994 | Sendai | JPN | Left | Left | 6' 2" | 205 lbs | - |
| Murakami, Horiuchi | 2B | Free Agent | 17 | 05/23/1997 | Misawa | JPN | Right | Right | 6' 4" | 185 lbs | - |
| Murakami, Ieyoshi | 3B | Free Agent | 33 | 10/26/1981 | Tokyo | JPN | Right | Right | 6' 4" | 230 lbs | - |
| Murakami, Yoshihito | LF | Free Agent | 27 | 03/23/1987 | Sendai | JPN | Left | Left | 5' 11" | 180 lbs | - |
| Murata, Kentaro | MR | Free Agent | 20 | 07/06/1994 | Kamakura | JPN | Left | Left | 6' 7" | 235 lbs | - |
| Murata, Kohei | RF | Free Agent | 22 | 12/12/1992 | Utsunomiya | JPN | Left | Left | 6' 5" | 205 lbs | - |
| Murata, Mushanokoji | SS | Free Agent | 19 | 12/15/1995 | Kurashiki | JPN | Switch | Right | 5' 10" | 185 lbs | - |
| Murata, Shogo | 2B | Yomiuri Giants | 28 | 03/12/1986 | Kaizuka | JPN | Right | Right | 6' 0" | 210 lbs | - |
| Murata, Takesi | SS | ORIX Buffaloes | 23 | 03/08/1991 | Takamatsu | JPN | Right | Right | 5' 11" | 175 lbs | - |
| Murayama, Mitsuzuka | 2B | Free Agent | 29 | 04/10/1985 | Machida | JPN | Right | Right | 6' 0" | 195 lbs | - |
| Muto, Kichisaburo | 1B | Yokohama Bay Stars | 21 | 11/09/1993 | Higashiosaka | JPN | Right | Left | 6' 5" | 225 lbs | - |
| Muto, Shiro | SS | Free Agent | 35 | 05/05/1979 | Kagoshima | JPN | Left | Left | 6' 1" | 187 lbs | - |