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|
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
|---|---|---|---|---|---|---|---|---|---|---|---|
| O'Brien, Lance | SP | Free Agent | 19 | 04/08/2047 | Melbourne | AUS | Right | Right | 6' 7" | 205 lbs | - |
| O'Connor, Jacob | 3B | Free Agent | 18 | 05/19/2048 | Moree | AUS | Switch | Right | 6' 4" | 185 lbs | - |
| O'Neill, Mike | LF | Free Agent | 22 | 09/18/2044 | San Francisco | USA | Right | Right | 6' 2" | 200 lbs | - |
| O'Neill, Shawn | RP | Free Agent | 32 | 03/16/2034 | Forest Lake | USA | Right | Right | 6' 1" | 195 lbs | - |
| O'Neill, Steve | C | Free Agent | 25 | 05/11/2041 | Edmond | USA | Switch | Right | 6' 1" | 205 lbs | - |
| Obregon, Oscar | CF | Chicago Eclipse | 20 | 11/17/2046 | San Pedro de Macorís | DOM | Switch | Right | 6' 3" | 200 lbs | - |
| Ocampo, Jesus | C | Free Agent | 19 | 03/05/2047 | Ponce | PUR | Right | Right | 6' 0" | 185 lbs | - |
| Ocampo, Rich | C | Hawaii Honu | 16 | 09/16/2050 | Cataño | PUR | Right | Right | 6' 3" | 195 lbs | - |
| Ocampo, Tony | 3B | West Island Jazz | 17 | 10/22/2049 | Tlalnepantla | MEX | Switch | Right | 6' 2" | 180 lbs | - |
| Ocanas, Jon | SP | West Island Jazz | 17 | 06/07/2049 | León | MEX | Left | Right | 6' 4" | 185 lbs | - |
| Ochoa, Alejandro | RP | Free Agent | 19 | 06/13/2047 | Carolina | PUR | Right | Right | 6' 1" | 175 lbs | - |
| Ochoa, Alex | SP | Buffalo Bison | 19 | 05/22/2047 | Holguín | CUB | Left | Left | 6' 1" | 175 lbs | - |
| Ochoa, Antonio | CF | West Island Jazz | 18 | 10/23/2048 | Carolina | PUR | Right | Right | 6' 0" | 185 lbs | - |
| Ochoa, Fernando | SP | Free Agent | 18 | 12/18/2048 | Guaynabo | PUR | Right | Right | 6' 1" | 175 lbs | - |
| Ochoa, Javier | RF | Free Agent | 16 | 03/21/2050 | Pinar del Rio | CUB | Right | Right | 6' 4" | 190 lbs | - |
| Ochoa, Jesus | SP | Free Agent | 17 | 07/12/2049 | San Juan | PUR | Left | Left | 6' 2" | 185 lbs | - |
| Ochoa, Jordan | SP | Free Agent | 19 | 08/09/2047 | Maracaibo | VEN | Right | Right | 5' 11" | 170 lbs | - |
| Ochoa, Juan | 2B | Montreal Mounties | 16 | 04/25/2050 | Comendador | DOM | Right | Right | 5' 11" | 160 lbs | - |
| Ochoa, Luis | SP | Walnut Creek Warriors | 17 | 10/23/2049 | Mexico City | MEX | Left | Left | 6' 5" | 195 lbs | - |
| Ochoa, Ricardo | SP | Free Agent | 18 | 04/07/2048 | Navajoa | MEX | Right | Right | 6' 3" | 185 lbs | - |
| Ochoa, Tomas | RP | Pennsylvania Butterflies | 17 | 12/25/2049 | Bayamón | PUR | Right | Right | 6' 2" | 180 lbs | - |
| Ochoa, Willie | SP | Maple Marauders | 18 | 11/20/2048 | Guadalajara | MEX | Right | Right | 5' 10" | 170 lbs | - |
| Ochoa, Willie | RF | Chicago Eclipse | 19 | 08/13/2047 | La Vega | DOM | Left | Left | 6' 5" | 205 lbs | - |
| Ocker, Jay | RP | Jacksonville Pilots | 26 | 11/14/2040 | Uxbridge | USA | Left | Right | 6' 2" | 200 lbs | $600,000 |
| Ocon, Jose | SP | Buffalo Bison | 19 | 11/12/2047 | Levittown | PUR | Right | Right | 6' 2" | 190 lbs | - |
| Oda, Reizo | C | Jacksonville Pilots | 18 | 01/29/2049 | Sumoto | JPN | Right | Right | 6' 0" | 175 lbs | - |
| Odinson, Thor | SP | Free Agent | 34 | 06/02/2032 | Oslo | NOR | Left | Right | 6' 6" | 220 lbs | - |
| Ogando, Alex | SP | Free Agent | 20 | 04/24/2046 | Baní | DOM | Right | Left | 6' 3" | 185 lbs | - |
| Ogata, Eiichiro | RF | Quebec Armada | 16 | 01/24/2051 | Yokohama | JPN | Right | Right | 5' 10" | 155 lbs | - |
| Ogata, Tadashi | LF | Free Agent | 17 | 11/30/2049 | Kyoto | JPN | Left | Left | 6' 5" | 210 lbs | - |
| Ogino, Shizuya | SP | Vancouver Pioneers | 16 | 08/10/2050 | Tokyo | JPN | Right | Right | 6' 1" | 175 lbs | - |
| Ohashi, Jokichi | SP | Free Agent | 19 | 04/02/2047 | Omura | JPN | Switch | Right | 6' 2" | 185 lbs | - |
| Ohashi, Junichi | RP | Free Agent | 18 | 10/05/2048 | Kajiki | JPN | Right | Left | 6' 1" | 180 lbs | - |
| Ojeda, Cesar | SP | Montreal Mounties | 17 | 05/02/2049 | San Cristóbal | DOM | Right | Right | 5' 11" | 170 lbs | - |
| Ojeda, Elias | SP | Free Agent | 16 | 11/01/2050 | Santiago | DOM | Right | Right | 5' 11" | 165 lbs | - |
| Ojeda, Juan | 1B | Chicago Eclipse | 16 | 12/07/2050 | San José de las Lajas | CUB | Switch | Right | 6' 2" | 185 lbs | - |
| Ojeda, Juan | SS | Free Agent | 26 | 01/08/2041 | Santo Domingo | DOM | Right | Right | 6' 1" | 185 lbs | - |
| Ojeda, Sergio | SP | Dallas Texans | 16 | 12/12/2050 | San Juan Tepa | MEX | Right | Right | 6' 0" | 175 lbs | - |
| Ojeda, Tony | LF | Montreal Mounties | 16 | 06/07/2050 | Fajardo | PUR | Right | Right | 6' 2" | 180 lbs | - |
| Okada, Shigeru | 2B | Free Agent | 17 | 10/03/2049 | Tokyo | JPN | Right | Right | 6' 1" | 180 lbs | - |
| Okada, Shigeyuki | C | Free Agent | 20 | 04/30/2046 | Yaita | JPN | Switch | Right | 6' 1" | 185 lbs | - |
| Okazaki, Kazukuni | SP | Free Agent | 24 | 08/19/2042 | Otofuke | JPN | Right | Right | 6' 2" | 185 lbs | - |
| Okazaki, Narihide | RP | Pennsylvania Butterflies | 18 | 11/07/2048 | Hiji | JPN | Switch | Right | 6' 4" | 195 lbs | - |
| Okimoto, Ryota | SP | Bloomington Blazers | 19 | 09/13/2047 | Togane | JPN | Right | Right | 6' 3" | 190 lbs | - |
| Okumura, Sozen | 2B | Jacksonville Pilots | 19 | 08/11/2047 | Hiroshima | JPN | Left | Right | 6' 2" | 180 lbs | - |
| Olguin, Antonio | 1B | Eagle Rock Ridge Runners | 16 | 06/03/2050 | San Francisco de Macorís | DOM | Switch | Left | 6' 2" | 195 lbs | - |
| Olguin, Carlos | SP | Free Agent | 22 | 11/16/2044 | Tejupilco | MEX | Right | Right | 5' 10" | 170 lbs | - |
| Oliva, Manny | 3B | Pennsylvania Butterflies | 16 | 10/28/2050 | San Victor | DOM | Right | Right | 6' 0" | 175 lbs | - |
| Oliva, Rich | 3B | Havana Stogies | 23 | 10/05/2043 | Culiacan | MEX | Right | Right | 6' 1" | 195 lbs | $600,000 |
| Oliva, Sergio | CF | Milwaukee Millers | 16 | 09/08/2050 | Licey al Medio | DOM | Right | Right | 6' 1" | 180 lbs | - |
| Olivares, Francisco | SP | Jacksonville Pilots | 16 | 05/27/2050 | Havana | CUB | Right | Right | 6' 2" | 180 lbs | - |
| Olivares, Jose | SP | Pennsylvania Butterflies | 17 | 07/26/2049 | San Juan | PUR | Right | Right | 6' 2" | 185 lbs | - |
| Olivares, Juan | C | Pennsylvania Butterflies | 17 | 11/07/2049 | Santiago | DOM | Right | Right | 6' 0" | 190 lbs | - |
| Olivares, Victor | SP | Bighorn Bison | 17 | 11/09/2049 | Mérida | MEX | Right | Right | 6' 2" | 185 lbs | - |
| Olivarez, Diego | 1B | Hawaii Honu | 27 | 12/02/2039 | Havana | CUB | Right | Right | 6' 2" | 205 lbs | $1,750,000 |
| Olivarez, Jesus | 3B | Free Agent | 26 | 01/25/2041 | Carolina | PUR | Right | Right | 6' 4" | 210 lbs | - |
| Olivarez, Tony | CF | Free Agent | 20 | 06/19/2046 | Carolina | PUR | Right | Right | 6' 2" | 180 lbs | - |
| Olivas, Guillermo | SP | Vancouver Pioneers | 17 | 05/25/2049 | Sabana Grande de Boya | DOM | Left | Right | 5' 11" | 170 lbs | - |
| Olivas, Jose | RP | Free Agent | 18 | 11/25/2048 | Santo Domingo | DOM | Right | Right | 6' 2" | 180 lbs | - |
| Olivas, Robert | CF | Chicago Eclipse | 20 | 01/28/2047 | Fajardo | PUR | Right | Right | 6' 2" | 185 lbs | - |
| Oliver, Kay | SP | West Island Jazz | 18 | 07/28/2048 | Glinde | GER | Right | Right | 6' 2" | 185 lbs | - |
| Oliveros, Jordan | RF | Bloomington Blazers | 19 | 11/27/2047 | Guaynabo | PUR | Right | Left | 6' 2" | 195 lbs | - |
| Oliveros, Mario | 1B | Free Agent | 18 | 02/25/2049 | Santiago | DOM | Right | Right | 6' 0" | 180 lbs | - |
| Olivo, Javy | SP | Jacksonville Pilots | 19 | 01/13/2048 | Guayama | PUR | Left | Right | 6' 4" | 195 lbs | - |
| Olivo, Mike | SP | Eureka Hornets | 17 | 07/10/2049 | San Luis | CUB | Right | Right | 6' 1" | 175 lbs | - |
| Ollervides, Rodolfo | 1B | Milwaukee Millers | 26 | 02/18/2041 | Acuautla | MEX | Right | Right | 6' 4" | 205 lbs | $2,266,000 |
| Olsen, Andy | 2B | Buffalo Bison | 27 | 10/11/2039 | New Albany | USA | Right | Right | 6' 0" | 200 lbs | $600,000 |
| Olveda, Raul | SP | Free Agent | 32 | 10/30/2034 | Camagüey | CUB | Right | Right | 6' 1" | 200 lbs | - |
| Olvera, Cortez | SP | Walnut Creek Warriors | 17 | 06/03/2049 | León | MEX | Switch | Right | 6' 4" | 190 lbs | - |
| Olvera, Manny | SP | Eureka Hornets | 19 | 04/20/2047 | Alhué | CHI | Left | Right | 6' 4" | 190 lbs | - |
| Olvera, Raul | SP | Buffalo Bison | 19 | 06/26/2047 | Maracaibo | VEN | Right | Right | 6' 1" | 185 lbs | - |
| Olvires, Danny | 2B | Free Agent | 21 | 09/09/2045 | Coamo | PUR | Switch | Right | 6' 2" | 200 lbs | - |
| Omori, Hiroshi | CF | Montreal Mounties | 18 | 02/03/2049 | Omihachiman | JPN | Right | Right | 6' 3" | 195 lbs | - |
| Onate, Alex | CF | Eureka Hornets | 20 | 02/10/2047 | Camagüey | CUB | Left | Right | 6' 1" | 180 lbs | - |
| Onate, Jon | SP | Bloomington Blazers | 17 | 05/05/2049 | Río Cauto | CUB | Left | Left | 6' 0" | 170 lbs | - |
| Ono, Tsurayaki | RP | Eagle Rock Ridge Runners | 17 | 10/08/2049 | Yawata | JPN | Switch | Left | 6' 0" | 175 lbs | - |
| Ono, Yukio | 1B | Free Agent | 22 | 05/07/2044 | Soka | JPN | Right | Right | 5' 11" | 200 lbs | - |
| Onofre, Raul | SP | Jacksonville Pilots | 17 | 11/27/2049 | Barahona | DOM | Right | Right | 5' 10" | 165 lbs | - |
| Ontiveros, Jorge | C | Buffalo Bison | 20 | 01/11/2047 | Santo Domingo | DOM | Right | Right | 6' 0" | 195 lbs | - |
| Opie, Clancy | CF | Eureka Hornets | 17 | 04/05/2049 | Wanganui | NZL | Left | Left | 6' 0" | 170 lbs | - |
| Orama, Mario | 3B | Free Agent | 20 | 02/01/2047 | Havana | CUB | Switch | Right | 6' 3" | 190 lbs | - |
| Orantes, Fernando | RP | Hawaii Honu | 17 | 11/03/2049 | Bauta | CUB | Left | Left | 5' 11" | 170 lbs | - |
| Orbegoso, Mike | 2B | Chicago Eclipse | 16 | 06/17/2050 | Havana | CUB | Right | Right | 6' 1" | 180 lbs | - |
| Orbelianov, Shaik | SP | El Paso Mavericks | 17 | 03/23/2049 | Tbilisi | GEO | Right | Right | 6' 0" | 170 lbs | - |
| Ordaz, Cesar | C | Free Agent | 19 | 02/09/2048 | Orizaba | MEX | Right | Right | 6' 0" | 180 lbs | - |
| Ordaz, Jose | 1B | Eureka Hornets | 23 | 12/30/2043 | Nanacamilpa | MEX | Right | Right | 6' 3" | 195 lbs | - |
| Ordaz, Omar | C | Pennsylvania Butterflies | 18 | 02/24/2049 | Santiago de Cuba | CUB | Right | Right | 6' 2" | 185 lbs | - |
| Ordaz, Sergio | SP | Walnut Creek Warriors | 18 | 05/11/2048 | San Mateo | VEN | Right | Right | 6' 1" | 170 lbs | - |
| Ordonez, Hugo | C | Pennsylvania Butterflies | 17 | 04/01/2049 | Cacocum | CUB | Right | Right | 6' 2" | 200 lbs | - |
| Orea, Juan | SP | Havana Stogies | 17 | 05/25/2049 | Baní | DOM | Left | Left | 6' 0" | 175 lbs | - |
| Orejel, Ricardo | SP | Havana Stogies | 16 | 09/02/2050 | San Juan | PUR | Left | Right | 6' 0" | 175 lbs | - |
| Orellana, David | SS | Quebec Armada | 18 | 06/18/2048 | San José de las Matas | DOM | Left | Right | 6' 0" | 180 lbs | - |
| Orellana, Gabriel | CF | Buffalo Bison | 19 | 05/27/2047 | Bayamón | PUR | Right | Right | 6' 3" | 180 lbs | - |
| Orellana, Jose | SS | Montreal Mounties | 18 | 07/20/2048 | Santo Domingo | DOM | Right | Right | 6' 4" | 200 lbs | - |
| Origel, Tony | SP | Bloomington Blazers | 18 | 02/17/2049 | Nicolas Romero | MEX | Right | Right | 6' 1" | 180 lbs | - |
| Orive, Manny | CF | Montreal Mounties | 22 | 11/12/2044 | Havana | CUB | Right | Right | 6' 1" | 185 lbs | - |
| Ornelas, Leo | SP | Montreal Mounties | 16 | 12/18/2050 | Ponce | PUR | Switch | Left | 6' 1" | 175 lbs | - |
| Orona, Miguel | LF | Free Agent | 30 | 09/29/2036 | Hermosillo | MEX | Right | Right | 6' 1" | 200 lbs | - |
| Oros, Victor | SP | Montreal Mounties | 18 | 01/18/2049 | Santiago de Cuba | CUB | Right | Right | 6' 2" | 175 lbs | - |
| Orozco, Alberto | SP | Bloomington Blazers | 17 | 12/24/2049 | Puerto Plata | DOM | Right | Right | 6' 1" | 180 lbs | - |
| Orozco, Carlos | RF | Quebec Armada | 16 | 03/18/2050 | Bayamón | PUR | Left | Left | 6' 4" | 185 lbs | - |
| Orozco, Frank | SP | Pennsylvania Butterflies | 17 | 04/21/2049 | Santo Domingo | DOM | Right | Right | 6' 5" | 200 lbs | - |
| Orozco, Jairo | 1B | Free Agent | 17 | 03/04/2049 | La Romana | DOM | Right | Right | 6' 2" | 195 lbs | - |
| Orozco, Rich | SP | Free Agent | 18 | 01/17/2049 | Isabela | PUR | Right | Left | 6' 3" | 185 lbs | - |
| Orpen, Jay | RF | Vancouver Pioneers | 18 | 09/20/2048 | Sydney | AUS | Left | Left | 6' 2" | 190 lbs | - |
| Ortega, Gerardo | SP | Pennsylvania Butterflies | 18 | 03/20/2048 | Havana | CUB | Left | Left | 6' 2" | 180 lbs | - |
| Ortega, Jose | SP | Vancouver Pioneers | 17 | 07/28/2049 | San Juan | PUR | Right | Right | 6' 0" | 175 lbs | - |
| Ortega, Julio | SP | Bighorn Bison | 18 | 05/02/2048 | Morovis | PUR | Left | Left | 6' 4" | 190 lbs | - |
| Ortega, Mel | 2B | Chicago Eclipse | 20 | 01/03/2047 | Santo Domingo | DOM | Right | Right | 6' 0" | 180 lbs | - |
| Ortega, Ramon | RF | Montreal Mounties | 22 | 12/13/2044 | Santo Domingo | DOM | Right | Right | 6' 4" | 190 lbs | - |
| Ortega, Rick | 2B | Free Agent | 18 | 12/31/2048 | Havana | CUB | Right | Right | 6' 2" | 180 lbs | - |
| Ortega, Vinny | SP | Maple Marauders | 16 | 06/02/2050 | Mexicali | MEX | Right | Right | 6' 3" | 185 lbs | - |
| Ortega, Willie | 3B | Pennsylvania Butterflies | 18 | 10/27/2048 | Havana | CUB | Switch | Right | 6' 2" | 190 lbs | - |
| Ortiz, Alex | SP | Bloomington Blazers | 18 | 02/01/2049 | Yaguajay | CUB | Right | Right | 6' 1" | 175 lbs | - |
| Ortiz, Alex | SP | Free Agent | 18 | 07/22/2048 | Zacualtipan | MEX | Right | Right | 6' 0" | 180 lbs | - |
| Ortiz, Armando | SP | Quebec Armada | 19 | 06/27/2047 | Manatí | PUR | Left | Left | 6' 1" | 190 lbs | - |
| Ortiz, Danny | RP | Jacksonville Pilots | 29 | 12/16/2037 | Quemado de Güines | CUB | Right | Right | 6' 1" | 200 lbs | $16,800,000 |
| Ortiz, Danny | RP | Free Agent | 17 | 09/20/2049 | Azua | DOM | Left | Left | 6' 3" | 190 lbs | - |
| Ortiz, Danny | 1B | Quebec Armada | 18 | 09/21/2048 | Vallejuelo | DOM | Left | Left | 6' 1" | 200 lbs | - |
| Ortiz, Dave | SP | Quebec Armada | 19 | 08/25/2047 | Condado | CUB | Right | Right | 6' 2" | 185 lbs | - |
| Ortiz, Edwin | SP | West Island Jazz | 18 | 06/11/2048 | San Juan | PUR | Right | Right | 5' 10" | 160 lbs | - |
| Ortiz, Enrique | LF | Free Agent | 16 | 04/02/2050 | Honda | COL | Right | Right | 6' 1" | 175 lbs | - |
| Ortiz, Felix | 2B | Free Agent | 21 | 02/02/2046 | San Francisco de Macorís | DOM | Right | Right | 6' 0" | 170 lbs | - |
| Ortiz, Jerry | SP | Maple Marauders | 16 | 04/28/2050 | Xaltepec | MEX | Right | Right | 6' 1" | 175 lbs | - |
| Ortiz, John | SP | West Island Jazz | 20 | 12/08/2046 | Matamoros | MEX | Left | Right | 6' 1" | 180 lbs | - |
| Ortiz, Jonathan | SP | Free Agent | 33 | 05/22/2033 | Entradero | PAN | Right | Right | 6' 2" | 205 lbs | - |
| Ortiz, Jose | RP | Free Agent | 17 | 11/17/2049 | Coyula | MEX | Left | Left | 6' 0" | 175 lbs | - |
| Ortiz, Juan | SP | Maple Marauders | 18 | 08/24/2048 | Santo Domingo | DOM | Left | Left | 6' 2" | 185 lbs | - |
| Ortiz, Juan | SS | Eureka Hornets | 19 | 09/09/2047 | Carolina | PUR | Right | Right | 6' 4" | 190 lbs | - |
| Ortiz, Luis | SP | Free Agent | 18 | 01/07/2049 | Bayamón | PUR | Right | Right | 6' 0" | 175 lbs | - |
| Ortiz, Manny | C | Free Agent | 22 | 05/31/2044 | Las Tunas | CUB | Right | Right | 6' 5" | 210 lbs | - |
| Ortiz, Mario | C | Jacksonville Pilots | 16 | 08/08/2050 | Bonao | DOM | Left | Right | 6' 5" | 210 lbs | - |
| Ortiz, Mario | SP | West Island Jazz | 19 | 04/10/2047 | Pedro Brand | DOM | Right | Right | 6' 2" | 180 lbs | - |
| Ortiz, Max | SS | Free Agent | 22 | 11/06/2044 | Santo Domingo | DOM | Switch | Right | 6' 3" | 170 lbs | - |
| Ortiz, Moises | SP | Pennsylvania Butterflies | 18 | 08/31/2048 | Temixco | MEX | Right | Right | 6' 0" | 170 lbs | - |
| Ortiz, Rico | 3B | Quebec Armada | 20 | 02/27/2047 | Carolina | PUR | Right | Right | 6' 1" | 185 lbs | - |
| Ortiz, Robert | LF | Free Agent | 20 | 06/29/2046 | Agramonte | CUB | Left | Left | 6' 1" | 200 lbs | - |
| Ortiz, Roberto | SP | West Island Jazz | 19 | 01/11/2048 | Cienfuegos | CUB | Right | Right | 6' 2" | 185 lbs | - |
| Ortiz, Roberto | 2B | Maple Marauders | 19 | 03/29/2047 | San Juan | PUR | Switch | Right | 6' 4" | 195 lbs | - |
| Ortiz, Ruben | SP | West Island Jazz | 17 | 09/10/2049 | Levittown | PUR | Right | Right | 6' 1" | 180 lbs | - |
| Ortiz, Tony | SP | Free Agent | 17 | 08/10/2049 | Patzcuaro | MEX | Left | Right | 6' 1" | 175 lbs | - |
| Ortiz, Tony | SP | Free Agent | 21 | 03/10/2045 | Tapachula | MEX | Right | Right | 6' 0" | 175 lbs | - |
| Ortiz, Victor | SP | Pennsylvania Butterflies | 18 | 01/05/2049 | Cienfuegos | CUB | Right | Right | 5' 11" | 170 lbs | - |
| Ortiz, Vinny | RP | Eureka Hornets | 25 | 05/05/2041 | Ciudad Vieja | GUA | Left | Right | 6' 0" | 190 lbs | $600,000 |
| Ortner, Mike | RP | Vancouver Pioneers | 30 | 04/19/2036 | Cranston | USA | Switch | Left | 6' 1" | 205 lbs | $6,500,000 |
| Ortolaza, Ivan | C | Free Agent | 20 | 01/28/2047 | San Juan | PUR | Left | Right | 6' 0" | 190 lbs | - |
| Osada, Koichi | SP | Hawaii Honu | 16 | 04/26/2050 | Higashiura | JPN | Right | Right | 6' 0" | 180 lbs | - |
| Osaki, Yasuzo | SS | Montreal Mounties | 19 | 03/31/2047 | Odawara | JPN | Right | Right | 6' 2" | 175 lbs | - |
| Osborne, George | 2B | Quebec Armada | 28 | 08/11/2038 | Mississauga | CAN | Right | Right | 6' 0" | 195 lbs | $600,000 |
| Osio, Marco | SP | Hawaii Honu | 17 | 07/11/2049 | Naucalpan | MEX | Left | Right | 5' 10" | 165 lbs | - |
| Osorio, Javier | SP | Bloomington Blazers | 18 | 12/22/2048 | Bayamón | PUR | Left | Left | 6' 3" | 200 lbs | - |
| Osorio, Mario | RP | Milwaukee Millers | 26 | 09/15/2040 | Hillsville | USA | Switch | Right | 6' 6" | 205 lbs | $950,000 |
| Ospina, Ricky | SP | Buffalo Bison | 20 | 12/25/2046 | Mexico City | MEX | Right | Right | 6' 0" | 180 lbs | - |
| Ostolaza, Al | RF | Pennsylvania Butterflies | 18 | 06/16/2048 | Santiago de Cuba | CUB | Switch | Left | 6' 4" | 190 lbs | - |
| Ostos, Luis | SP | Chicago Eclipse | 17 | 02/11/2050 | Mexico City | MEX | Right | Right | 6' 1" | 175 lbs | - |
| Osuna, Eli | RF | Free Agent | 21 | 10/09/2045 | Monterrey | MEX | Right | Left | 6' 0" | 195 lbs | - |
| Osuna, Jesus | LF | Free Agent | 28 | 04/12/2038 | Chula Vista | USA | Left | Left | 6' 4" | 210 lbs | - |
| Otero, Amadeo | SP | Free Agent | 30 | 12/05/2036 | Serravalle | SMR | Left | Left | 6' 0" | 190 lbs | - |
| Otero, Jordan | SP | Montreal Mounties | 17 | 11/11/2049 | Caguas | PUR | Right | Right | 6' 1" | 175 lbs | - |
| Otero, Robby | SP | Quebec Armada | 19 | 09/06/2047 | Cardenas | CUB | Right | Right | 6' 1" | 180 lbs | - |
| Otsuka, Kazuhiro | SP | Free Agent | 19 | 11/10/2047 | Kashiwa | JPN | Left | Left | 6' 2" | 185 lbs | - |
| Oulton, Paul | C | Maple Marauders | 28 | 11/10/2038 | Edmonton | CAN | Right | Right | 5' 9" | 195 lbs | $1,608,000 |
| Ovalle, Jordan | SP | Free Agent | 17 | 12/22/2049 | Bayamón | PUR | Right | Right | 6' 2" | 185 lbs | - |
| Ovalles, Antonio | SP | Free Agent | 19 | 05/05/2047 | San Pedro de Macorís | DOM | Left | Left | 6' 3" | 180 lbs | - |
| Overly, Skyler | SP | Buffalo Bison | 16 | 04/11/2050 | Shenyang | CHN | Right | Right | 6' 4" | 190 lbs | - |
| Owusu, David | 1B | Free Agent | 22 | 02/17/2045 | Salem | USA | Right | Right | 6' 2" | 185 lbs | - |
| Owusu, Jeremy | LF | West Island Jazz | 21 | 04/18/2045 | San Francisco | USA | Right | Right | 6' 5" | 205 lbs | $600,000 |
| Oyama, Toshoku | SP | Vancouver Pioneers | 18 | 09/01/2048 | Takanabe | JPN | Right | Left | 6' 3" | 195 lbs | - |
