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|
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
|---|---|---|---|---|---|---|---|---|---|---|---|
| O'Brien, R.J. | LF | Free Agent | 36 | 04/18/2012 | Danbury | USA | Left | Left | 6' 2" | 205 lbs | - |
| O'Donnell, Sean | C | Free Agent | 16 | 05/28/2032 | Sioux City | USA | Right | Right | 6' 0" | 170 lbs | - |
| Oakes, Eric | RP | Chicago Cubs | 28 | 10/30/2020 | Mitchellville | USA | Right | Right | 6' 5" | 200 lbs | $3,520,000 |
| Ocasio, Juan | 2B | Washington Nationals | 17 | 09/28/2031 | Restrepo | COL | Right | Right | 6' 2" | 175 lbs | - |
| Ody, Adam | RP | San Francisco Giants | 27 | 04/16/2021 | Raleigh | USA | Left | Left | 6' 5" | 200 lbs | $675,000 |
| Oetting, Robbie | SP | Free Agent | 17 | 06/28/2031 | New York | USA | Right | Right | 6' 2" | 175 lbs | - |
| Ogle, Nick | DH | Cleveland Guardians | 26 | 08/28/2022 | Flora | USA | Right | Right | 6' 4" | 200 lbs | $4,560,000 |
| Ogren, Bill | RP | Colorado Rockies | 27 | 12/10/2021 | DeFuniak Springs | USA | Right | Left | 6' 2" | 200 lbs | $1,400,000 |
| Ohmer, Austin | CF | Montreal Expos | 26 | 07/17/2022 | St. Joseph | USA | Left | Right | 5' 10" | 195 lbs | $16,500,000 |
| Ohnn, Young-kwang | C | Seattle Mariners | 30 | 05/04/2018 | Incheon | KOR | Right | Right | 6' 0" | 200 lbs | $2,750,000 |
| Olson, Jerry | CF | Free Agent | 16 | 04/25/2032 | Leon Valley | USA | Right | Right | 6' 1" | 155 lbs | - |
| Omura, Katsumi | CL | Cleveland Guardians | 34 | 10/24/2014 | Ago | JPN | Switch | Left | 6' 1" | 185 lbs | $1,400,000 |
| Onate, Mike | 2B | Oakland Athletics | 17 | 12/05/2031 | Havana | CUB | Right | Right | 6' 3" | 175 lbs | - |
| Opsahl, Kevin | CL | Free Agent | 15 | 09/28/2033 | Niagara Falls | USA | Switch | Right | 6' 2" | 170 lbs | - |
| Orosco, Omar | RP | Philadelphia Phillies | 24 | 05/01/2024 | Calexico | USA | Right | Right | 6' 4" | 205 lbs | $675,000 |
| Ortega, Jose | SP | Free Agent | 17 | 04/07/2031 | West Covina | USA | Right | Right | 5' 11" | 160 lbs | - |
| Ortega, Rich | RP | Free Agent | 39 | 08/27/2009 | La Vega | DOM | Right | Right | 6' 0" | 200 lbs | - |
| Ortiz, Bill | C | Free Agent | 17 | 08/06/2031 | San Antonio Castillo Velasco | MEX | Right | Right | 5' 11" | 175 lbs | - |
| Ortiz, Tony | SP | Cincinnati Reds | 24 | 10/15/2024 | La Victoria | VEN | Right | Right | 5' 9" | 180 lbs | - |
| Ortman, Lou | CF | Free Agent | 16 | 06/18/2032 | Glassboro | USA | Right | Left | 6' 1" | 155 lbs | - |
| Osuna, Bellchior | C | Chicago White Sox | 18 | 06/01/2030 | Petare | VEN | Right | Right | 6' 4" | 200 lbs | - |
| Ottinger, Corey | 3B | Free Agent | 34 | 11/06/2014 | Madison | USA | Right | Right | 6' 2" | 200 lbs | - |
| Ou-yang, Zhi-bin | 2B | Free Agent | 36 | 12/19/2012 | Kaohsiung | TPE | Right | Right | 6' 1" | 200 lbs | - |
| Ovens-Toots, Kevin | SP | Texas Rangers | 27 | 05/27/2021 | Lake Charles | USA | Right | Right | 6' 1" | 190 lbs | $22,000,000 |
| Overbeek, Jack | RP | Minnesota Twins | 32 | 03/13/2016 | Tytsjerksteradiel | NED | Right | Right | 6' 6" | 200 lbs | $5,700,000 |
| Overlie, Justin | RP | New York Mets | 24 | 02/20/2024 | Salt Lake City | USA | Right | Right | 5' 11" | 185 lbs | $675,000 |
| Owens, John | RP | Milwaukee Brewers | 28 | 07/21/2020 | Norristown | USA | Right | Right | 6' 3" | 200 lbs | $4,560,000 |
| Oxenrider, Alan | 3B | Chicago Cubs | 35 | 11/14/2013 | Lyman | USA | Right | Right | 6' 2" | 205 lbs | $3,600,000 |
