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|
| Name | Pos | Team | Age | DOB | POB | Nationality | Bats | Throws | Height | Weight | Salary |
|---|---|---|---|---|---|---|---|---|---|---|---|
| O'Hare, Adam | LF | Chicago (WIN) Cubs | 27 | 01/11/2019 | Fairview Park | USA | Right | Right | 6' 0" | 190 lbs | $675,000 |
| O'Reilly, Rick | CF | Cleveland (WIN) Indians | 26 | 12/28/2020 | Toronto | CAN | Right | Right | 6' 2" | 200 lbs | $675,000 |
| O'Toole, Barrfhionn | RF | Los Angeles (WIN) Angels | 26 | 03/16/2020 | Roscrea | IRL | Left | Left | 6' 3" | 200 lbs | - |
| Obawole, Torquato | 2B | Miami (WIN) Marlins | 23 | 02/01/2023 | Quinhamel | GNB | Right | Right | 6' 1" | 190 lbs | - |
| Ocana, Mario | 2B | Tampa Bay (WIN) Rays | 23 | 11/13/2023 | Tucupita | VEN | Left | Right | 6' 2" | 195 lbs | - |
| Ochoa, Gabe | SS | San Francisco (WIN) Giants | 24 | 12/04/2022 | Puebla | MEX | Right | Right | 6' 1" | 200 lbs | - |
| Ochoa, Willie | C | Detroit (WIN) Tigers | 24 | 06/12/2022 | San Diego | USA | Right | Right | 6' 5" | 200 lbs | - |
| Okimura, Hideo | RF | Seattle (WIN) Mariners | 23 | 11/11/2023 | Iwaki | JPN | Right | Right | 6' 6" | 200 lbs | - |
| Olausson, Joel | RP | Pittsburgh (WIN) Pirates | 23 | 04/01/2023 | Canton | USA | Right | Right | 6' 1" | 195 lbs | - |
| Olheiser, Chris | C | Seattle (WIN) Mariners | 24 | 12/27/2022 | Shelby | USA | Right | Right | 6' 0" | 200 lbs | - |
| Oliveri, Evan | C | Washington (WIN) Nationals | 23 | 10/18/2023 | Kensington Park | USA | Left | Left | 6' 0" | 200 lbs | - |
| Olivo, Frank | LF | Boston (WIN) Red Sox | 21 | 01/10/2025 | Murrells Inlet | USA | Left | Right | 6' 0" | 185 lbs | - |
| Olivo, Jon | RP | Boston (WIN) Red Sox | 22 | 07/07/2024 | Coyuca | MEX | Right | Right | 6' 7" | 205 lbs | - |
| Oliynyk, Matviy | 3B | Asheville Tourists | 21 | 04/23/2025 | Lutsk | UKR | Right | Right | 6' 8" | 225 lbs | - |
| Olkowicz, Ernest | LF | Free Agent | 26 | 01/08/2020 | Jesup | USA | Right | Right | 6' 7" | 200 lbs | - |
| Olsen, Tim | LF | Texas (WIN) Rangers | 26 | 03/28/2020 | Biddeford | USA | Left | Right | 6' 0" | 200 lbs | $675,000 |
| Orban, Pete | CF | Cincinnati (WIN) Reds | 27 | 12/12/2019 | Parma | USA | Right | Right | 6' 5" | 205 lbs | - |
| Oropeza, Angel | RF | Chicago (WIN) Cubs | 20 | 08/05/2026 | San Antonio | USA | Left | Left | 6' 6" | 205 lbs | - |
| Orphan, Matthew | SP | Kansas City (WIN) Royals | 22 | 02/13/2024 | Hillsborough | USA | Right | Right | 6' 2" | 195 lbs | - |
| Ortiz, Tony | RP | Pittsburgh (WIN) Pirates | 22 | 10/15/2024 | La Victoria | VEN | Right | Right | 5' 9" | 175 lbs | - |
| Osborn, Tim | 2B | New York (WIN) Yankees | 23 | 07/07/2023 | Taber | CAN | Right | Right | 5' 11" | 185 lbs | - |
| Osborne, Harry | SP | Washington (WIN) Nationals | 23 | 10/04/2023 | Trois-Rivières | CAN | Left | Left | 6' 6" | 205 lbs | - |
| Osgood, Mike | CL | Boston (WIN) Red Sox | 21 | 11/01/2025 | Detroit | USA | Left | Right | 6' 5" | 200 lbs | - |
| Osting, Chris | LF | Asheville Tourists | 22 | 08/14/2024 | North Creek | USA | Right | Right | 6' 2" | 200 lbs | - |
| Overlie, Justin | RP | New York (WIN) Mets | 22 | 02/20/2024 | Salt Lake City | USA | Right | Right | 5' 11" | 175 lbs | - |
