Player Draft
| Name | State | School | Class | Pos. | Year | Round | Team |
| Mason McCoy | IL | Washington | 2013 | 2B | 2017 | 6 | Orioles |
| Grant McCray | FL | Lakewood Ranch | 2019 | OF | 2019 | 3rd | San Francisco Giants |
| Mac McCroskey | AR | Har-Ber | 2018 | SS | 2023 | 20 | Angels |
| Carter McCulley | FL | Pensacola Catholic` | 2022 | SS | 2022 | 20 | Dodgers |
| Brody McCullough | NC | Sheets Memorial Christian | 2018 | RHP | 2022 | 10 | Cubs |
| Chayce McDermott | IN | Pendleton Heights | 2017 | RHP | 2021 | 4 | Astros |
| Cole McDonald | IA | New Hampton | 2015 | RHP | 2019 | 15th | Astros |
| Trevor McDonald | MS | George County | 2019 | RHP | 2019 | 11 | Giants |
| Robert McDonnell | IL | Barrington | 2010 | LHP | 2015 | 25 | Dodgers |
| Tyler McDonough | OH | Moeller | 2018 | OF | 2021 | 3 | Boston Red Sox |
| Max McDowell | PA | Norwin | 2012 | C | 2015 | 13 | Brewers |
| Christopher McElvain | TN | Summit | 2019 | RHP | 2022 | 8 | Reds |
| Daniel McElveny | CA | Bonita Vista | 2021 | SS | 2021 | 6 | BOS |
| Jordan McFarland | IL | Waterloo | 2016 | OF | 2016 | 36 | Nationals |
| Alex McFarlane | GA | Habersham Central | 2019 | RHP | 2022 | 4 | Phillies |
| Haydn McGeary | AZ | Thunderbird | 2018 | C | 2022 | 15 | Cubs |
| Easton McGee | KY | Hopkinsville | 2016 | RHP | 2016 | 4 | Rays |
| Ashton McGee | NC | Charles B. Aycock | 2017 | OF | 2019 | 18 | Milwaukee Brewers |
| Liam McGill | RI | South Kingstown | 2016 | C | 2021 | 9 | Atlanta Braves |
| Clayton McGinness | MO | Savannah | 2015 | RHP | 2019 | 20 | Orioles |
| Kevin McGonigle | PA | Bonner-Prendergast | 2023 | SS | 2023 | 1 CB-A | Tigers |
| Jacson McGowan | IN | Brownsburg | 2015 | 3B | 2018 | 11 | Rays |
| Bryce McGowan | NC | Cary | 2018 | RHP | 2021 | 18 | Colorado Rockies |
| Teddy McGraw | NY | Oneonta | 2020 | RHP | 2023 | 3 | Mariners |
| Michael McGreevy | CA | San Clemente | 2019 | RHP | 2021 | 1 | STL |
| Andy McGuire | VA | Madison | 2013 | SS | 2018 | 28 | Blue Jays |
| Mason McGwire | CA | Capistrano Valley | 2022 | RHP | 2022 | 8 | Cubs |
| Brandon McIlwain | PA | Council Rock North | 2016 | OF | 2019 | 26 | Marlins |
| Paul McIntosh | FL | Dade Christian | 2016 | C | 2021 | Free Agnet | Marlins |
| Donovan McIntyre | IL | Marian Catholic | 2021 | OF | 2021 | 11 | San Francisco Giants |
| Brendan McKay | PA | Blackhawk | 2014 | LHP | 2017 | 1 | Rays |
| Ryan McKay | FL | Satellite Beach | 2015 | RHP | 2015 | 11 | Marlins |
| Cole McKay | TX | Smithson Valley | 2015 | RHP | 2015 | 30 | Detroit Tigers |
| Cooper McKeehan | NC | Weddington | 2019 | LHP | 2022 | 16 | Royals |
| Aaron McKeithan | NC | T.C. Roberson | 2018 | C | 2021 | 16 | St. Louis Cardinals |
| Triston McKenzie | FL | Royal Palm Beach | 2015 | RHP | 2015 | 1 | Indians |
| Jared McKenzie | TX | Round Rock | 2019 | OF | 2022 | 5 | Nationals |
| Adam McKillican | BC | Mark R. Isfeld High School | 2018 | - | 2021 | Free Agent | Texas Rangers |
| Jeremy McKinney | IN | Franklin Community | 2013 | RHP | 2017 | 31 | Nationals |
| Keaton McKinney | IA | Ankeny Centennial | 2014 | RHP | 2014 | 28 | Mets |
| Zach McKinstry | IN | Fort Wayne North Side | 2014 | SS | 2016 | 33 | Dodgers |
| Myles McKisic | FL | Next Level Academy | 2017 | SS | 2017 | 23 | Rangers |
| Matthew McLain | CA | Beckman | 2018 | SS | 2021 | 1 | CIN |
| Sean McLain | CA | Arnold O. Beckman | 2019 | SS | 2022 | 5 | Dodgers |
| Mark McLaughlin | GA | Northview | 2019 | RHP | 2022 | 7 | White Sox |
| Nolan McLean | NC | Garner | 2020 | RHP | 2022 | 3 | Orioles |
| Chris McMahon | PA | West Chester Rustin | 2017 | RHP | 2020 | 2 | Rockies |
| Sam McMillan | FL | Suwannee | 2017 | C | 2017 | 5 | Tigers |
| Garrett McMillan | AL | Hillcrest | 2019 | RHP | 2022 | 19 | Twins |
| Brennon McNair | MS | Magee | 2021 | SS | 2021 | 11 | Royals |
| Mike McQuillan | IL | Brother Rice | 2008 | 2B | 2012 | 33 | Nationals |
| Xavier Meachem | NC | South Central | 2020 | RHP | 2023 | 10 | Marlins |
| Jacob Meador | TX | Centennial | 2019 | RHP | 2022 | 12 | Dodgers |
| Parker Meadows | GA | Grayson | 2018 | OF | 2018 | 2nd | Tigers |
| Jacob Means | KS | Gardner-Edgerton | 2014 | 3B | 2019 | 22 | Royals |
| John Means | KS | Gardner Edgerton | 2011 | - | 2014 | 11 | Orioles |
| Victor Mederos | FL | Westminster Christian | 2020 | RHP | 2022 | 6 | Angels |
| Chase Meidroth | CA | Mira Costa | 2019 | SS | 2022 | 4 | Red Sox |
| Ian Mejia | AZ | Sahuarita | 2018 | RHP | 2022 | 11 | Braves |
| Dakota Mekkes | MI | Jenison | 2013 | RHP | 2016 | 10 | Cubs |
| M.J. Melendez | FL | Westminster Christian | 2017 | C | 2017 | 2 | Royals |
| Ivan Melendez | TX | El Paso Coronado | 2018 | 1B | 2022 | 2 | Diamondbacks |
| Yahil Melendez | PR | BYOU Academy | 2023 | SS | 2023 | 7 | Cubs |
| Troy Melton | CA | Canyon | 2018 | RHP | 2022 | 4 | Tigers |
| Jacob Melton | OR | South Medford | 2019 | OF | 2022 | 2 | Astros |
| Drew Mendoza | FL | Lake Minneola | 2016 | 3B | 2016 | 36 | Tigers |
| Kenny Mendoza | NJ | Clearview | 2016 | LHP | 2016 | 24 | Rangers |
| Joseph Menefee | TX | George Ranch | 2018 | LHP | 2022 | 20 | Reds |
| Antonio Menendez | VA | Herndon | 2017 | RHP | 2021 | 14 | Rays |
| Matt Mervis | MD | Georgetown Prep | 2016 | 1B | 2016 | 39 | Nationals |
| Parker Messick | FL | Plant City | 2019 | LHP | 2022 | 2 | Guardians |
| Skyler Messinger | CO | N/A | 2017 | - | 2022 | 19 | Rockies |
| Zach Messinger | IN | Castle | 2018 | RHP | 2021 | 13 | Yankees |
| Skyler Messinger | CO | Niwot | 2017 | 3B | 2022 | 19 | Rockies |
| Brian Metoyer | LA | Natchitoches Central | 2015 | RHP | 2018 | 40th | Mets |
| Ben Metzinger | KY | Trinity | 2018 | C | 2022 | 7 | Brewers |
| Max Meyer | MN | Woodbury | 2017 | RHP | 2020 | 1st (3rd Pi | Miami Marlins |
| J. Noble Meyer | OR | Jesuit | 2023 | RHP | 2023 | 1 | Marlins |
| Trevin Michael | OK | Piedmont | 2017 | RHP | 2022 | 10 | Tigers |
| Thomas Michelson | IL | Neuqua Valley | 2011 | RHP | 2014 | 29 | Rays |
| Justin Miknis | PA | DuBois Central Catholic | 2019 | C | 2019 | 35 | Orioles |
| Nathan Mikolas | WI | Bradford | 2012 | OF | 2012 | 3 | Yankees |
| Matthew Mikulski | NY | Lakeland | 2017 | LHP | 2021 | 2 | San Francisco Giants |
| Karson Milbrandt | MO | Liberty | 2022 | RHP | 2022 | 3 | Nationals |
| Garrett Milchin | FL | The First Academy | 2016 | 3B | 2016 | 39 | Tigers |
| Spencer Miles | MO | Rock Bridge | 2019 | RHP | 2022 | 4 | Giants |
| Deylen Miley | OH | Bryan | 2016 | SS | 2021 | Free Agent | Astros |
| Greg Milhorn | AR | Arkansas | 2011 | RHP | 2011 | 30 | Tigers |
| Andrew Millas | IL | Belleville East | 2016 | C | 2019 | 7 | Athletics |
| Brandon Miller | PA | Ephrata | 2013 | RHP | 2016 | 6 | Mariners |
| Luke Miller | IN | Cowan | 2015 | 3B | 2018 | 22 | Phillies |
| Owen Miller | WI | Ozaukee | 2015 | SS | 2018 | 3 | Padres |
| Bobby Miller | IL | McHenry West | 2017 | RHP | 2017 | 38 | Orioles |
| Evan Miller | IN | LaPorte | 2014 | RHP | 2016 | 22 | Padres |
| Joe Miller | PA | La Salle | 2018 | LHP | 2022 | 11 | Tigers |
| Andrew Miller | NJ | Sterling | 2015 | LHP | 2018 | 40 | Miami Marlins |
| Noah Miller | WI | Ozaukee | 2021 | SS | 2021 | CB-A | Minnesota Twins |
| Mason Miller | PA | Garnet Valley | 2018 | LHP | 2021 | 3 | Athletics |
| Jackson Miller | FL | JW Mitchell | 2020 | C | 2020 | 2 | Cincinnati Reds |
| Mason Miller | FL | JW Mitchell | 2020 | LHP | 2023 | 14 | Royals |