| Name | State | School | Class | Pos. | Commitment |
| Vinny Abbatiello | OH | LaSalle | 2019 | SS | Belmont |
| Matt Abbott | OH | North Royalton | 2022 | RHP | Findlay |
| Evan Ables | OH | Vandalia-Butler | 2023 | RHP | California University (PA |
| Andrew Abrahamowicz | OH | Elyria Catholic | 2017 | RHP | Bowling Green State |
| Trey Abrams | OH | Pickerington Central | 2015 | 3B | UNC Wilmington |
| Hunter Ackerman | OH | Madison Comprehensive | 2015 | OF | Grace College |
| Taylor Acquista | OH | Gahanna Lincoln | 2015 | LHP | Siena |
| Brodey Acres | OH | Sylvania Northview | 2022 | SS | Walsh University |
| Billy Adams | OH | St Ignatius | 2022 | SS | Ohio |
| Jacob Adams | OH | Troy | 2019 | SS | Sinclair CC |
| Connor Adams | OH | St. Ignatius | 2017 | LHP | Louisville |
| Robby Adams | OH | Fenwick | 2023 | OF | Miami (OH) - Middletown |
| Jesse Adams | OH | Toledo St. John's | 2012 | OF | Boston College |
| Austin Adamson | OH | Oak Hills | 2023 | SS | Mount St. Joseph's |
| Scott Adelman | OH | Norwalk St. Paul | 2021 | RHP | Tiffin University |
| Nathan Adelman | OH | Norwalk | 2021 | 1B | Tiffin University |
| Austin Adelman | OH | Willard | 2021 | C | Findlay |
| Austin Adkins | OH | Pleasant | 2021 | 2B | WSU-Lake |
| Johnny Adkins | OH | Carroll | 2020 | C | Medaille College |
| Kolton Adkins | OH | Lake | 2023 | RHP | Thiel College |
| Clayton Agler | OH | Parkway | 2018 | OF | Lawrence University |
| Sampson Agostine | OH | Perry | 2019 | RHP | Lake Erie College |
| Griffin Ailes | OH | Field | 2022 | RHP | Ashland |
| Ted Akas | OH | Buckeye Valley | 2023 | 2B | Lourdes University |
| TJ Alas | OH | St Francis DeSales | 2012 | 2B | Eastern Kentucky |
| Brant Alazaus | OH | West Branch | 2018 | LHP | Walsh University |
| Ryan Albers | OH | West Clermont | 2019 | 1B | Pikeville |
| Dylan Albright | OH | Indian Lake | 2017 | RHP | Marietta College |
| Blaine Albright | OH | Bath | 2023 | LHP | Indiana |
| Alex Alders | OH | Nordonia | 2015 | OF | Wright State |
| Cameron Aldred | OH | Cincinnati Country Day | 2015 | LHP | Cincinnati |
| Jake Aleman | OH | Jackson | 2020 | OF | Malone University |
| Landon Alexander | OH | Buckeye Valley | 2018 | OF | Owens CC |
| Maxwell Alexander | OH | Archbishop Hoban | 2022 | OF | Hiram College |
| Sebastian Alexander | OH | Mayfield | 2020 | SS | Kent State |
| Cameron Alldred | OH | Cincinnati Country Day | 2015 | LHP | Cincinnati |
| Johnathon Allen | OH | Wadsworth | 2022 | LHP | Akron |
| Hunter Allen | OH | Woodmore | 2021 | RHP | Owens CC |
| Brian Allen | OH | Troy | 2023 | RHP | Ohio Dominican |
| Corwin Allen | OH | Hilliard Darby High School | 2021 | RHP | Siena Heights |
| Cameron Allen | OH | Ellet | 2023 | RHP | Wright State |
| Nikolas Allen | OH | Colerain | 2021 | C | Frontier CC |
| Preston Allen | OH | Reynoldsburg | 2022 | RHP | Walters State CC |
| Jake Allen | OH | Colerain | 2016 | LHP | Wabash Valley JC |
| Micah Allen | OH | LaSalle | 2017 | RHP | Ashland |
| Nathan Allen | OH | Revere | 2012 | RHP | Akron |
| Ronnie Allen Jr. | OH | Cincinnati Country Day | 2017 | C | Ohio State |
| Austin Allinger | OH | Lakota West | 2015 | RHP | Evansville |
| Andrew Almquist | OH | Lakota East | 2015 | RHP | Miami |
| Blake Altaffer | OH | Montpelier | 2021 | RHP | Ohio Northern |
| Seth Altman | OH | Hilliard Davidson | 2020 | RHP | Bluffton College |
| Nathan Altstadt | OH | Solon | 2016 | LHP | Alabama |
| Ty Amann | OH | Moeller | 2012 | SS | Ohio |
| Kristian Amaro | OH | Hilliard Darby | 2020 | C | Florence-Darlington JC |
| Austin Amburgey | OH | Miamisburg | 2022 | C | Marietta College |
| Brock Amelung | OH | Olentangy Liberty | 2023 | RHP | Bowling Green State |
| Jack Amendola | OH | Chagrin Falls | 2019 | OF | Lafayette |
| Colin Ames | OH | Cincinnati Hills Christian Academy | 2022 | RHP | Gulf Coast State College |
| Riley Ames | OH | Sylvania Northview | 2023 | OF | Macomb CC |
| Bryce Amos | OH | Shadyside | 2022 | RHP | West Virginia |
| Andy Amstutz | OH | Kettering Fairmont | 2022 | OF | Rio Grande |
| Jaxson Amweg | OH | Van Wert | 2019 | SS | Saint Francis (IN) |
| Naaman Anderkin | OH | Dayton Christian | 2022 | RHP | Salem International |
| Alex Anders | OH | Beavercreek | 2014 | LHP | Wright State |
| Tyler Anderson | OH | Lima Shawnee | 2013 | RHP | Bowling Green State |
| Josh Anderson | OH | Olentangy | 2020 | LHP | Otterbein College |
| Bryce Anderson | OH | Milford | 2012 | 3B | Huntington University (IN |
| Kaleb Anderson | OH | Beavercreek | 2021 | RHP | WSU-Lake |
| Cade Anderson | OH | West Clermont | 2020 | OF | Capital University |
| IAN ANDERSON | OH | Trinity | 2022 | MIF | Baldwin Wallace |
| Trevor Anderson | OH | Lima Shawnee | 2015 | SS | Findlay |
| Zach Anderson | OH | Brunswick | 2023 | RHP | Marietta College |
| Clay Anderson | OH | Trinity | 2018 | SS | Otterbein College |
| Logan Andonian | OH | Defiance | 2018 | RHP | Owens CC |
| Ted Andrews | OH | Cincinnati Hills Christian Academy | 2012 | RHP | Furman |
| Cole Andrews | OH | Bishop Watterson | 2018 | C | Miami (OH) |
| Max Andrich | OH | Medina | 2023 | 2B | Capital University |
| Michael Andryszczyk | OH | Independence | 2023 | OF | Capital University |
| Corbon Angermeier | OH | NDCL | 2013 | RHP | Ashland |
| Mack Anglin | OH | Sparta Highland | 2019 | RHP | Clemson |
| Sam Ankrom | OH | Thomas Worthington | 2014 | LHP | Heidelberg College |
| Johnny Anservitz | OH | Lakeside | 2019 | C | Allegheny College |
| Devin Anthony | OH | Hawken | 2022 | RHP | College of Wooster |
| Chase Antle | OH | Grove City | 2015 | RHP | Bowling Green State |
| Justin Antoncic | OH | St. Francis Desales | 2016 | SS | Michigan State |
| Kasey Anzelc | OH | Walsh Jesuit | 2017 | LHP | John Carroll |
| Quintin Applegate | OH | Olentangy Berlin | 2022 | C | Wittenberg University |
| Dylan Appolloni | OH | Bishop Watterson | 2017 | RHP | Ohio Dominican |
| Caio Araujo | OH | Colegio CK (Brazil) | 2020 | RHP | Clarendon JC |
| Tyler Archambeau | OH | Maumee | 2017 | C | Findlay |
| Sam Archambeau | OH | Maumee | 2023 | C | Albion College |
| Aaron Archer | OH | Bowling Green | 2021 | C | Bluffton College |
| Nathan Archer | OH | Keystone | 2021 | OF | Bowling Green State |
| Cole Archual | OH | Worthington Kilbourne | 2022 | OF | Cuyahoga CC |
| Kyler Archual | OH | Worthington Kilbourne | 2019 | RHP | Tiffin University |
| Ryan Arington | OH | Cin. Christian | 2013 | SS | Western Carolina |
| Noah Arkenburg | OH | Notre Dame Cathedral Latin | 2020 | RHP | Marshall |
| Aidan Arkwright | OH | Massillon Perry | 2016 | 3B | Thiel College |
| Bryce Arledge | OH | Unioto | 2013 | LHP | Mt Vernon Nazarene |
| Josh Armbruster | OH | Breckaville-Broadview Hts. | 2014 | RHP | Notre Dame College |