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| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
| Yagi, Motoshige | CF | Los Angeles Bruins | 24 | 03/11/1994 | Tomigusuku | JPN | Right | Right | 5' 11" | 165 lbs | - |
| Yamada, Hiroshige | SP | Greenville 84s | 23 | 01/04/1995 | Koganei | JPN | Right | Right | 5' 11" | 220 lbs | $2,100,000 |
| Yamamoto, Kiyotaka | LF | Free Agent | 31 | 04/23/1987 | Hirokawa | JPN | Right | Right | 5' 11" | 200 lbs | - |
| Yamamoto, Ryobe | 2B | Toronto Titans | 22 | 03/15/1996 | Shibata | JPN | Switch | Right | 5' 10" | 175 lbs | $400,000 |
| Yates, Damian | RF | Madison Bombers | 32 | 10/08/1986 | Independence | USA | Right | Right | 5' 11" | 200 lbs | $5,310,000 |
| Ye, Ik-jun | 1B | Free Agent | 37 | 09/21/1981 | Uijongbu | KOR | Right | Right | 6' 0" | 217 lbs | - |
| Yee, Alex | C | Free Agent | 20 | 05/25/1998 | Vancouver | CAN | Right | Right | 6' 3" | 225 lbs | - |
| Yi, Jung-keun | MR | Los Angeles Bruins | 28 | 11/21/1990 | Asan | KOR | Left | Left | 6' 1" | 232 lbs | $1,250,000 |
| Yi, Seung-woo | CF | Chicago Machine | 23 | 08/08/1995 | Pyongyang | PRK | Left | Right | 6' 4" | 185 lbs | $400,000 |
| Yi, Yoo-chul | MR | Irvine Gang Green | 30 | 02/13/1988 | Kwangju | KOR | Right | Right | 6' 3" | 243 lbs | $1,000,000 |
| Yokoyama, Shumei | 1B | Kansas City Cougars | 32 | 11/18/1986 | Hino | JPN | Switch | Right | 5' 11" | 209 lbs | $12,750,000 |
| Yoshida, Mabuchi | SP | Maui Tropics | 23 | 02/26/1995 | Ebetsu | JPN | Right | Right | 6' 5" | 240 lbs | $3,600,000 |
| Young, John | SP | Indianapolis Lions | 31 | 05/10/1987 | Atlanta | USA | Left | Left | 5' 9" | 200 lbs | $1,800,000 |
| Younger, Jud | 3B | Free Agent | 31 | 08/08/1987 | Los Angeles | USA | Left | Right | 5' 8" | 193 lbs | - |
| Yu, Hyo-sang | LF | Pocatello Boccabellas | 26 | 08/02/1992 | Inchon | KOR | Right | Right | 6' 4" | 226 lbs | $400,000 |
| Yue, Kuang-yin | MR | Austin River Sharks | 23 | 06/22/1995 | Chiayi | TPE | Right | Right | 6' 1" | 245 lbs | $650,000 |
| Yun, Seung-woo | CL | St. Louis Browns | 30 | 04/14/1988 | Hamhung | PRK | Right | Right | 6' 6" | 199 lbs | $825,000 |
