Player Commitments
| Name | State | School | Class | Pos. | Commitment |
| Samuel Ardoin | LA | Sam Houston | 2023 | SS | Texas |
| Silas Ardoin | LA | Sam Houston | 2019 | C | Texas |
| Jacob Arehart | KS | Olathe South | 2019 | 1B | Labette CC |
| Chase Arehart | KY | Randall Cooper | 2017 | RHP | Midway |
| Julian Areliz | CA | Sierra Canyon | 2024 | OF | UC San Diego |
| Tyler Arella | NY | John Glenn | 2016 | LHP | Villanova |
| Hector Arellano | TX | LOPEZ EARLY COLLEGE H S | 2025 | LHP | Houston |
| CJ Arellano | AZ | Corona del Sol | 2024 | LHP | Scottsdale CC |
| Gabriel Arellano | CA | Monrovia | 2018 | OF | Pasadena City College |
| Travis Arellano | TX | Cypress Falls | 2021 | 3B | National Park |
| Jorge Arenas | FL | Monsignor Pace | 2016 | SS | Stetson |
| Luis Arenas | AZ | Cienega | 2023 | 3B | Park University - Gilbert |
| Giancarlo Arencibia | LA | Archbishop Rummel | 2024 | SS | Tulane |
| Joey Arend | IL | St. Charles East | 2025 | OF | Xavier |
| Jed Arend | KY | Daviess County | 2016 | SS | Kentucky Wesleyan College |
| Brayden Arendale | TN | Bartlett | 2019 | RHP | Jackson State CC |
| Ben Arendale | AL | Tuscaloosa County | 2023 | 3B | Southern Union State CC |
| Brock Arender | TN | Grace Christian Academy Franklin | 2021 | LHP | Walters State CC |
| Kael Arends | IA | MOC Floyd Valley | 2023 | C | Briar Cliff University |
| Aric Arends | MN | Harvey Wells County (ND) | 2017 | 1B | Dakota Wesleyan |
| Carter Arends | IA | Iowa Falls | 2022 | RHP | Ellsworth CC |
| Eli Arends | NE | Grand Island Northwest | 2023 | OF | Hutchinson CC |
| Jayson Arendt | NC | Holly Springs | 2019 | RHP | Elon |
| Bryan Arendt | NC | Holly Springs | 2021 | C | UNC Wilmington |
| Easton Arendt | WI | De Pere | 2024 | OF | Winona State University |
| Matt Arens | MN | Apple Valley | 2017 | LHP | Cal Poly |
| Jake Arens | WI | Mauston | 2016 | 1B | Marian University (WI) |
| Brady Arenson | IL | New Trier | 2012 | LHP | Coastal Carolina |
| Giovanni Aresta | NJ | Old Bridge | 2021 | 1B | William Paterson |
| Zack Aresty | MA | Wayland | 2015 | OF | Suffolk University |
| Noah Arevalo | LA | De La Salle | 2024 | 2B | LSU-Alexandria |
| Lane Argabright | NC | A L Brown | 2017 | C | Montreat College |
| Kyle Arganbright | PA | Hempfield | 2015 | RHP | Northampton CC |
| Nicholas Argento | MN | Wayzata | 2021 | RHP | North Carolina |
| Andrew Argenziano | NJ | Demarest | 2022 | RHP | Columbia |
| Daniel Argenziano | NJ | Demarest | 2023 | 3B | New York University |
| Nicholas Argenziano | NJ | NV Demarest | 2019 | 3B | New York University |
| Nicholas Argersinger | WI | Westosha Central | 2023 | OF | Wisconsin-Stevens Point |
| Quinn Argetsinger | MO | DeSmet | 2023 | 3B | Southwestern Illinois JC |
| Coy Argo | GA | Commerce | 2024 | OF | Gordon State JC |
| Cade Argo | NE | Norris | 2019 | 2B | Hutchinson CC |
| Zach Argo | NE | Norris | 2018 | RHP | Air Force |
| Andy Arguelles | FL | Columbus | 2016 | LHP | Florida International |
| Anthony Arguelles | FL | Christopher Columbus | 2018 | RHP | Santa Fe |
| Tim Arguello | TX | Smithson Valley | 2022 | RHP | Wichita State |
| Ty Arguello | IA | Newton | 2019 | C | Iowa Central CC |
| Carson Arguin | VA | Forest Park | 2017 | OF | Harford CC |
| George Arias | AZ | Tucson | 2018 | RHP | Arizona |
| Waldy Arias | NJ | Plainfield | 2018 | SS | Campbell |
| Owen Arias | CT | Canterbury | 2023 | C | Central Connecticut State |
| Nick Arias | AZ | Tucson | 2022 | SS | Grand Canyon |
| Bryan Arias | TX | Marshall | 2015 | SS | Texas-San Antonio |
| Ivan Arias | MA | Dexter Southfield | 2022 | SS | Vanderbilt |
| Gabriel Arias | WA | North Creek | 2023 | OF | Pacific University (OR) |
| Jordi Arias | PA | Hazleton Area | 2016 | SS | Harford CC |
| Felix Arias | FL | Vine Christian Academy | 2022 | 3B | Prairie State JC |
| Kylar Arias | IL | Antioch | 2021 | C | Rock Valley JC |
| Jesus Arias | IA | Santo Domingo | 2021 | 1B | Southeastern CC (IA) |
| Sujel Arias-Auzon | DR | Colegio Episopal San Marcos | 2018 | 3B | Miami-Dade College |
| Josh Aribal | WA | Pearl City | 2021 | RHP | Central Arizona JC |
| Gianni Arici | PA | St. Joseph's Prep | 2018 | SS | Quinnipiac |
| Jake Arienzo | PA | Slippery Rock | 2015 | LHP | Clarion University |
| Elmo Arimurti-Sager | NC | Green Hope | 2019 | RHP | Barton College |
| Zachary Aring | IL | Beecher | 2013 | RHP | St. Joseph's - Brooklyn |
| Ryan Arington | OH | Cin. Christian | 2013 | SS | Western Carolina |
| Lucas Arington | PA | Hopewell | 2023 | 1B | Tiffin University |
| Jorge Arispuro | GA | Archer | 2021 | - | University of North Georg |
| Colby Ariss | ON | Our Lady of Lourdes Catholic | 2022 | SS | Ottawa |
| Tyler Arista | IL | York | 2021 | C | Calvin College |
| Alex Aristy | FL | Homeschool | 2014 | OF | Palm Beach SC |
| Moises Aristy Jr | MD | DeMatha | 2018 | 2B | CCBC-Catonsville |
| JC Ariza | NJ | Seton Hall Prep | 2018 | RHP | Tulane |
| John Ariza | NJ | Seton Hall Prep | 2018 | RHP | Howard JC |
| Manny Ariza | PA | Perkiomen School | 2020 | LHP | Kingsborough CC |
| Kyle Arjona | FL | Cape Coral | 2015 | RHP | Jacksonville |
| Noah Arkenburg | OH | Notre Dame Cathedral Latin | 2020 | RHP | Marshall |
| Shea Arkenburg | OH | Geneva | 2024 | RHP | Lake Erie College |
| Aidan Arkwright | OH | Massillon Perry | 2016 | 3B | Thiel College |
| Brandon Arledge | AR | Sheridan | 2021 | LHP | Arkansas |
| Bryce Arledge | OH | Unioto | 2013 | LHP | Mt Vernon Nazarene |
| Max Arlich | MN | East Ridge | 2024 | LHP | Texas A&M |
| Otto Arlt | MN | Maranatha Christian Academy | 2023 | 1B | St. John's University (MN |
| Cody Arlt | MN | Hutchinson | 2017 | C | Minnesota State CC |
| Clayton Armah | VA | St. John's College | 2025 | RHP | Auburn |
| Dante Armanini | PA | DuBois Central Catholic | 2021 | OF | Saint Vincent |
| Will Armbruester | WA | Eastside Catholic | 2019 | RHP | New Mexico |
| Josh Armbruster | OH | Breckaville-Broadview Hts. | 2014 | RHP | Notre Dame College |
| Dane Armbrustmacher | MI | Fowler | 2018 | LHP | Western Michigan |
| Vincent Armellino | TX | McKinney Boyd | 2024 | LHP | Saint Michael's |
| Tre Armendariz | TX | Cypress Woods | 2019 | 3B | Tyler JC |
| Vince Armeni | OH | Ursuline | 2020 | SS | Fairmont State University |
| Anthony Armenia | NY | Connetquot | 2023 | 2B | Bridgeport |
| Jake Armentrout | IN | Wheeler | 2018 | OF | Xavier |
| Bryant Armijo-Martin | CO | Pueblo Centenial | 2023 | 1B | Saint Xavier |
| Colin Armistead | CO | Regis Jesuit | 2019 | OF | Dubuque |
| Brice Armistead | TX | Seven Lakes | 2017 | LHP | Blinn JC |
| William Armistead | MS | Mooreville | 2019 | RHP | Itawamba CC |
| Reece Armitage | ME | Falmouth | 2017 | OF | Marist |
| Aidan Armitage | ON | Sir John A MacDonald Secodary School | 2019 | RHP | Saint Francis (IN) |
| Darius Armorer | ON | Sinclair | 2020 | OF | Bossier Parish CC |