MLB Players — M
2,372 MLB baseball players with last names starting with M.
- Maas, Duke 1955–1961
- Maas, Kevin 1990–1995
- Mabe, Bob 1958–1960
- Mabeus, Chris 2006–2006
- Mabry, John 1994–2007
- MacArthur, Mac 1884–1884
- MacCormack, Frank 1976–1977
- Macdonald, Bill 1950–1953
- Macdonald, Bob 1990–1996
- MacDonald, Harvey 1928–1928
- MacDonald, Malcolm 1902–1902
- MacDougal, Mike 2001–2012
- Mace, Harry 1891–1891
- Macey, 1890–1890
- Macfarlane, Mike 1987–1999
- MacFayden, Danny 1926–1943
- MacGamwell, Ed 1905–1905
- Macha, Ken 1974–1981
- Macha, Mike 1979–1980
- Machado, Alejandro 2005–2005
- Machado, Anderson 2003–2005
- Machado, Andres 2017–
- Machado, Dixon 2015–2022
- Machado, Julio 1989–1991
- Machado, Manny 2012–
- Machado, Robert 1996–2004
- Machemehl, Chuck 1971–1971
- Machemer, Dave 1978–1979
- Machi, Jean 2012–2017
- Machin, Vimael 2020–2022
- Macias, Drew 2007–2009
- Macias, Jose 1999–2005
- Maciejewski, Josh 2024–
- MacIver, Willie 2025–
- Mack, Bill 1908–1908
- Mack, Connie 1886–1896
- Mack, Denny 1871–1883
- Mack, Earle 1910–1914
- Mack, Frank 1922–1925
- Mack, George
- Mack, Joe 1945–1945
- Mack, Quinn 1994–1994
- Mack, Ray 1938–1947
- Mack, Reddy 1885–1890
- Mack, Shane 1987–1998
- Mack, Tony 1985–1985
- Mackanin, Pete 1973–1981
- MacKenzie, Eric 1955–1955
- MacKenzie, Gordon 1961–1961
- MacKenzie, Ken 1960–1965
- Mackey, Biz
- Mackiewicz, Felix 1941–1947
- MacKinnon, David 2022–2022
- Mackinson, John 1953–1955
- Macko, Steve 1979–1980
- Mackowiak, Rob 2001–2008
- MacLane, Evan 2010–2010
- MacLeod, Billy 1962–1962
- Maclin, Lonnie 1993–1993
- Macon, Max 1938–1947
- MacPhail, Larry
- MacPhail, Lee
- MacPhee, Waddy 1922–1922
- MacPherson, Harry 1944–1944
- MacRae, Scott 2001–2001
- Macri, Matt 2008–2008
- Macullar, Jimmy 1879–1886
- MacWhorter, Keith 1980–1980
- Madden, Bunny 1909–1911
- Madden, Frank 1914–1914
- Madden, Gene 1916–1916
- Madden, Kid 1887–1891
- Madden, Len 1912–1912
- Madden, Mike 1983–1986
- Madden, Morris 1987–1989
- Madden, Tommy 1906–1910
- Madden, Ty 2024–
- Maddern, Clarence 1946–1951
- Maddon, Joe
- Maddox, Austin 2017–2017
- Maddox, Elliott 1970–1980
- Maddox, Forest
- Maddox, Garry 1972–1986
- Maddox, Jerry 1978–1978
- Maddox, Nick 1907–1910
- Maddux, Greg 1986–2008
- Maddux, Mike 1986–2000
- Madero, Luis 2021–2021
- Madigan, William 1886–1886
- Madison, Art 1895–1899
- Madison, Bob
- Madison, Dave 1950–1953
- Madison, Scotti 1985–1989
- Madjeski, Ed 1932–1937
- Madlock, Bill 1973–1987
- Madrid, Alex 1987–1989
- Madrid, Sal 1947–1947
- Madrigal, Nick 2020–
- Madrigal, Warner 2008–2009
- Madris, Bligh 2022–
- Madritsch, Bobby 2004–2005
- Madson, Ryan 2003–2018
- Maduro, Calvin 1996–2002
- Maeda, Kenta 2016–
- Maestri, Hector 1960–1961
- Magadan, Dave 1986–2001
- Magallanes, Ever 1991–1991
- Magee, Bill 1897–1902
- Magee, Lee 1911–1919
- Magee, Sherry 1904–1919
- Magee, Wendell 1996–2002
- Maggert, Harl 1907–1912
- Maggi, Drew 2023–2023
- Magill, Matt 2013–2020
- Maglie, Sal 1945–1958
- Magnante, Mike 1991–2002
- Magner, John 1879–1879
- Magner, Stubby 1911–1911
- Magnifico, Damien 2016–2017
- Magnuson, Jim 1970–1973
- Magnuson, Trystan 2011–2011
- Magoon, George 1898–1903
- Magrane, Joe 1987–1996
- Magrann, Tom 1989–1989
- Magriñat, José
- Magrini, Pete 1966–1966
- Magruder, Chris 2001–2005
- Maguire, Freddie 1922–1931
- Maguire, Jack 1950–1951
- Maguire, Thomas 1894–1894
- Mahady, Jim 1921–1921
- Mahaffey, Art 1960–1966
- Mahaffey, Lou 1898–1898
- Mahaffey, Roy 1926–1936
- Mahan, Art 1940–1940
- Mahar, Frank 1902–1902
- Mahar, Kevin 2007–2007
- Maharg, Billy 1912–1916
- Mahay, Ron 1995–2010
- Maher, Tom 1902–1902
- Mahlberg, Greg 1978–1979
- Mahle, Greg 2016–2016
- Mahle, Tyler 2017–
- Mahler, Mickey 1977–1986
- Mahler, Rick 1979–1991
- Maholm, Paul 2005–2014
- Mahomes, Pat 1992–2003
- Mahon, Al 1930–1930
- Mahoney, Anthony
- Mahoney, Bob 1951–1952
- Mahoney, Chris 1910–1910
- Mahoney, Dan 1892–1895
- Mahoney, Danny 1911–1911
- Mahoney, Jim 1959–1965
- Mahoney, Joe 2012–2013
- Mahoney, Mike 1897–1898
- Mahoney, Ule
- Mahtook, Mikie 2015–2019
- Maier, Bob 1945–1945
- Maier, Mitch 2006–2012
- Maile, Luke 2015–
- Mailho, Emil 1936–1936
- Mails, Duster 1915–1926
- Main, Alex 1914–1918
- Main, Woody 1948–1953
- Maine, John 2004–2013
- Maine, Scott 2010–2012
- Mains, Jim 1943–1943
- Mains, Willard 1888–1896
- Mairena, Oswaldo 2000–2002
- Maisel, Charlie 1915–1915
- Maisel, Fritz 1913–1918
- Maisel, George 1913–1922
- Majeski, Hank 1939–1955
- Majewski, Gary 2004–2010
- Majewski, Val 2004–2004
- Makell, William
- Makita, Kazuhisa 2018–2018
- Makosky, Frank 1937–1937
- Makowski, Tom 1975–1975
- Maksudian, Mike 1992–1994
- Malarcher, Dave
- Malarkey, Bill 1908–1908
- Malarkey, John 1894–1903
- Malaska, Mark 2003–2004
- Malave, Jose 1996–1997
- Malay, Charlie 1905–1905
- Malay, Joe 1933–1935
- Malcolm,
- Maldonado, Anthony 2024–
- Maldonado, Candy 1981–1995
- Maldonado, Carlos 1990–1993
- Maldonado, Martin 2011–
- Maler, Jim 1981–1983
- Malette, Arthur
- Malinosky, Tony 1937–1937
- Malis, Cy 1934–1934
- Malkmus, Bobby 1957–1962
- Mallett, Jerry 1959–1959
- Mallette, Brian 2002–2002
- Mallette, Mal 1950–1950
- Mallicoat, Rob 1987–1992
- Mallon, Les 1931–1935
- Mallonee, Ben 1921–1921
- Mallonee, Jule 1925–1925
- Mallory, Jim 1940–1945
- Mallory, Sheldon 1977–1977
- Malloy, Alex 1910–1910
- Malloy, Bob 1943–1949
- Malloy, Herm 1907–1908
- Malloy, Justyn-Henry 2024–
- Malloy, Marty 1998–2002
- Malmberg, Harry 1955–1955
- Malone,
- Malone, Chuck 1990–1990
- Malone, Eddie 1949–1950
- Malone, Fergy 1871–1884
- Malone, Lew 1915–1919
- Malone, Pat 1928–1937
- Malone, Thomas 1872–1872
- Malone, William
- Maloney, Billy 1901–1908
- Maloney, Charlie 1908–1908
- Maloney, Jim 1960–1971
- Maloney, Matt 2009–2012
- Maloney, Pat 1912–1912
- Maloney, Robert 1876–1877
- Maloney, Sean 1997–1998
- Maloy, Paul 1913–1913
- Maltzberger, Gordon 1943–1947
- Malzone, Frank 1955–1966
- Mamaux, Al 1913–1924
- Manaea, Sean 2016–
- Mancini, Trey 2016–
- Mancuso, Frank 1944–1947
- Mancuso, Gus 1928–1945
- Manda, Carl 1914–1914
- Manders, Hal 1941–1946
- Manela, Claudio
- Maness, Seth 2013–2017
- Maney, Vincent 1912–1912
- Mangan, Jim 1952–1956
- Mangini, Matt 2010–2010
- Mangrum,
- Mangual, Angel 1969–1976
- Mangual, Pepe 1972–1977
- Mangum, Jake 2025–
- Mangum, Leo 1924–1935
- Mangus, George 1912–1912
- Manion, Clyde 1920–1934
- Mankowski, Phil 1976–1982
- Manley, Abe
- Manley, Effa
- Manlove, Charlie 1884–1884
- Mann, Brandon 2018–2018
- Mann, Fred 1882–1887
- Mann, Garth 1944–1944
- Mann, Jim 2000–2003
- Mann, Johnny 1928–1928
- Mann, Kelly 1989–1990
- Mann, Les 1913–1928
- Manning, Charlie 2008–2008
- Manning, David 2003–2003
- Manning, Ernie 1914–1914
- Manning, Felix
- Manning, Jack 1873–1886
- Manning, Jim 1884–1889
- Manning, John
- Manning, Matt 2021–
- Manning, Max
- Manning, Rick 1975–1987
- Manning, Rube 1907–1910
- Manning, Tim 1882–1885
- Manno, Don 1940–1941
- Manoah, Alek 2021–
- Manon, Julio 2003–2006
- Manon, Ramon 1990–1990
- Manrique, Fred 1981–1991
- Mansell, John 1882–1882
- Mansell, Mike 1879–1884
- Mansell, Tom 1879–1884
- Manship, Jeff 2009–2016
- Manske, Lou 1906–1906
- Mansolino, Tony
- Mantei, Matt 1995–2005
- Mantell,
- Mantilla, Felix 1956–1966
- Mantiply, Joe 2016–
- Mantle, Mickey 1951–1968
- Manto, Jeff 1990–2000
- Manuel, Barry 1991–1998
- Manuel, Charlie 1969–1975
- Manuel, Jerry 1975–1982
- Manuel, Moxie 1905–1908
- Manuel, Robert 2009–2010
- Manush, Frank 1908–1908
- Manush, Heinie 1923–1939
- Manville, Dick 1950–1952
- Manwaring, Kirt 1987–1999
- Manzanillo, Josias 1991–2004
- Manzanillo, Ravelo 1988–1995
- Manzano, Hilario
- Manzardo, Kyle 2024–
- Manzella, Tommy 2009–2010
- Mapel, Rolla 1919–1919
- Mapes, Cliff 1948–1952
- Maple, Howard 1932–1932
- Maples, Dillon 2017–2021
- Mappes, George 1885–1886
- Marak, Paul 1990–1990
- Maranda, Georges 1960–1962
- Maranville, Rabbit 1912–1935
- Marberry, Firpo 1923–1936
- Marbet, Walt 1913–1913
- Marcano, Tucupita 2021–
- Marcell, Oliver
- Marcell, Ziggy
- Marchan, Rafael 2020–
- Marchildon, Phil 1940–1950
- Marcum, Johnny 1933–1939
- Marcum, Shaun 2005–2015
- Marentette, Leo 1965–1969
- Margevicius, Nick 2019–2021
- Margoneri, Joe 1956–1957
- Margot, Manuel 2016–
- Marichal, Juan 1960–1975
- Marimon, Sugar Ray 2015–2015
- Marinaccio, Ron 2022–
- Marinez, Jhan 2010–2018
- Marion, Dan 1914–1915
- Marion, Marty 1940–1953
- Marion, Red 1935–1943
- Mariot, Michael 2014–
- Maris, Roger 1957–1968
- Marisnick, Jake 2013–
- Marjama, Mike 2017–2018
- Markakis, Nick 2006–2020
- Markel, Parker 2019–2022
- Markell, Duke 1951–1951
- Markham, Duke
- Markham, Johnny
- Markland, Gene 1950–1950
- Markle, Cliff 1915–1924
- Marks, Justin 2014–2017
- Marksberry, Matt 2015–2016
- Marlota, J. F.
- Marlowe, Cade 2023–
- Marlowe, Dick 1951–1956
- Marmol, Carlos 2006–2014
- Marmol, Oliver
- Marmolejos, Jose 2020–2021
- Marnie, Hal 1940–1942
- Marolewski, Fred 1953–1953
- Maronde, Nick 2012–2014
- Marone, Lou 1969–1970
- Maroth, Mike 2002–2007
- Marquard, Rube 1908–1925
- Marquardt, Ollie 1931–1931
- Marquez, Brailyn 2020–2020
- Marquez, German 2016–
- Marquez, Gonzalo 1972–1974
- Marquez, Isidro 1995–1995
- Marquez, Jeff 2010–2011
- Márquez, Luis 1951–1954
- Marquis, Bob 1953–1953
- Marquis, Jason 2000–2015
- Marquis, Jim 1925–1925
- Marquis, Roger 1955–1955
- Marr, Lefty 1886–1891
- Marrero, Chris 2011–2017
- Marrero, Connie 1950–1954
- Marrero, Deven 2015–2022
- Marrero, Eli 1997–2006
- Marrero, Oreste 1993–1996
- Marriott, William 1917–1927
- Marrow, Buck 1932–1938
- Mars, Ed 1890–1890
- Marsans, Armando 1911–1918
- Marsee, Jakob 2025–
- Marsh,
- Marsh, Alec 2023–
- Marsh, Brandon 2021–
- Marsh, Fred 1949–1956
- Marsh, Tom 1992–1995
- Marshall,
- Marshall, Bill 1931–1934
- Marshall, Bobby
- Marshall, Brett 2013–2013
- Marshall, Chip 1941–1941
- Marshall, Cuddles 1946–1950
- Marshall, Dave 1967–1973
- Marshall, Doc 1904–1909
- Marshall, Evan 2014–2021
- Marshall, Jack
- Marshall, Jay 2007–2009
- Marshall, Jim 1958–1962
- Marshall, Joe 1903–1906
- Marshall, Keith 1973–1973
- Marshall, Max 1942–1944
- Marshall, Mike 1967–1981
- Marshall, Rube 1912–1915
- Marshall, Sean 2006–2014
- Marshall, Willard 1942–1955
- Marson, Lou 2008–2013
- Marsonek, Sam 2004–2004
- Marte, Alfredo 2013–2015
- Marte, Andy 2005–2014
- Marte, Damaso 1999–2010
- Marte, Jefry 2015–2018
- Marte, Jose 2021–
- Marte, Kelvin 2016–2016
- Marte, Ketel 2015–
- Marte, Luis 2011–2012
- Marte, Noelvi 2023–
- Marte, Starling 2012–
- Marte, Victor 2009–2013
- Marte, Yunior 2022–
- Martell, Doc 1909–1910
- Martes, Francis 2017–2017
- Martin,
- Martin, Al 1872–1875
- Martin, Austin 2024–
- Martin, Babe 1944–1953
- Martin, Barney 1953–1953
- Martin, Billy 1914–1914
- Martin, Brett 2019–2022
- Martin, Chris 2014–
- Martin, Clem
- Martin, Cody 2015–2017
- Martin, Corbin 2019–2022
- Martin, Davis 2022–
- Martin, Doc 1908–1912
- Martin, Ethan 2013–2014
- Martin, Felix
- Martin, Frank 1897–1899
- Martin, Fred 1946–1950
- Martin, Gene 1968–1968
- Martin, Harvey
- Martin, Hersh 1937–1945
- Martin, J. C. 1959–1972
- Martin, J. D. 2009–2010
- Martin, Jack 1912–1914
- Martin, Jason 2019–2021
- Martin, Jerry 1974–1984
- Martin, Joe 1903–1903
- Martin, John 1980–1983
- Martin, Kyle 2017–2017
- Martin, Leonys 2011–2019
- Martin, Mike 1986–1986
- Martin, Morrie 1949–1959
- Martin, Norberto 1993–1999
- Martin, Pat 1919–1920
- Martin, Paul 1955–1955
- Martin, Pepper 1928–1944
- Martin, Phonney 1872–1873
- Martin, Rafael 2015–2016
- Martin, Ray 1943–1948
- Martin, Renie 1979–1984
- Martin, Richie 2019–2022
- Martin, Russell 2006–2019
- Martin, Speed 1917–1922
- Martin, Stack
- Martin, Stu 1936–1943
- Martin, Tom 1997–2007
- Martina, Joe 1924–1924
- Martinez, Adrian 2022–
- Martinez, Anastacio 2004–2004
- Martinez, Buck 1969–1986
- Martinez, Carlos 1988–1995
- Martinez, Carmelo 1983–1991
- Martinez, Chito 1991–1993
- Martinez, Cristhian 2009–2013
- Martinez, Dave 1986–2001
- Martinez, David 2013–2014
- Martinez, Dennis 1976–1998
- Martinez, Domingo 1992–1993
- Martinez, Edgar 1987–2004
- Martinez, Felix 1997–2001
- Martinez, Fernando 2009–2013
- Martinez, Freddie 1980–1981
- Martinez, Greg 1998–1998
- Martinez, Hector 1962–1963
- Martinez, J. D. 2011–
- Martinez, Javier 1998–1998
- Martinez, Joe 2009–2013
- Martinez, Jose 1969–1970
- Martinez, Justin 2023–
- Martinez, Luis 2003–2003
- Martinez, Manny 1996–1999
- Martinez, Marty 1962–1972
- Martinez, Michael 2011–2017
- Martinez, Nick 2014–
- Martinez, Orelvis 2024–
- Martinez, Osvaldo 2010–2011
- Martinez, Pablo 1996–1996
- Martinez, Pedro 1992–2009
- Martinez, Ramon 1988–2001
- Martinez, Rogelio 1950–1950
- Martinez, Sandy 1995–2004
- Martinez, Seth 2021–
- Martinez, Silvio 1977–1981
- Martinez, Ted 1970–1979
- Martinez, Tino 1990–2005
- Martinez, Tippy 1974–1988
- Martinez, Tony 1963–1966
- Martinez, Victor 2002–2018
- Martinez, Willie 2000–2000
- Martínez, Angel 2024–
- Martínez, J. P. 2023–
- Martínez, Lino
- Martínez, Pasqual
- Martínez, Prudencio
- Martínez, Rabbit
- Martini, Nick 2018–
- Martini, Wedo 1935–1935
- Martis, Shairon 2008–2013
- Marty, Joe 1937–1941
- Martyn, Bob 1957–1959
- Martz, Gary 1975–1975
- Martz, Randy 1980–1983
- Marvel, James 2019–2019
- Marzano, John 1987–1998
- Masaoka, Onan 1999–2000
- Mashaw, Forrest
- Mashore, Clyde 1969–1973
- Mashore, Damon 1996–1998
- Masi, Phil 1939–1952
- Masiñeira, Manuel
- Maskrey, Harry 1882–1882
- Maskrey, Leech 1882–1886
- Mason,
- Mason, Charlie 1875–1883
- Mason, Del 1904–1907
- Mason, Don 1966–1973
- Mason, Ernie 1894–1894
- Mason, Hank 1958–1960
- Mason, Jim 1971–1979
- Mason, Mike 1982–1988
- Mason, Roger 1984–1994
- Massa, Gordon 1957–1958
- Masset, Nick 2006–2015
- Massey, Bill 1894–1894
- Massey, Michael 2022–
- Massey, Mike 1917–1917
- Massey, Red 1918–1918
- Massingale, Garcia
- Massip, Salvador
- Masteller, Dan 1995–1995
- Masters, Walt 1931–1939
- Masterson, Justin 2008–2015
- Masterson, Paul 1940–1942
- Masterson, Walt 1939–1956
- Mastny, Tom 2006–2008
- Mastrobuoni, Miles 2022–
- Mastroianni, Darin 2011–2016
- Mata, Frank 2010–2010
- Mata, Victor 1984–1985
- Matarazzo, Len 1952–1952
- Matchett, Jack
- Matchick, Tommy 1967–1972
- Mateo, Henry 2001–2006
- Mateo, Jorge 2020–
- Mateo, Juan 2006–2006
- Mateo, Julio 2002–2007
- Mateo, Marcos 2010–2015
- Mateo, Ruben 1999–2004
- Matheny, Mike 1994–2006
- Mather, Joe 2008–2012
- Mathes, Joe 1912–1916
- Mathews, Bobby 1871–1887
- Mathews, Dell
- Mathews, Eddie 1952–1968
- Mathews, Greg 1986–1992
- Mathews, Nelson 1960–1965
- Mathews, T. J. 1995–2002
- Mathews, Terry 1991–1999
- Mathewson, Christy 1900–1916
- Mathewson, Henry 1906–1907
- Mathias, Carl 1960–1961
- Mathias, Mark 2020–
- Mathieson, Scott 2006–2011
- Mathis, Doug 2008–2010
- Mathis, Jeff 2005–2021
- Mathis, Ron 1985–1987
- Mathis, Verdell
- Mathisen, Wyatt 2020–2021
- Mathison, Jimmy 1902–1902
- Matias, John 1970–1970
- Matijevic, J. J. 2022–2022
- Matlack, Jon 1971–1983
- Matlock, Leroy
- Maton, Nick 2021–
- Maton, Phil 2017–
- Matos, Francisco 1994–1994
- Matos, Julius 2002–2003
- Matos, Luis 2000–2006
- Matos, Osiris 2008–2009
- Matos, Pascual 1999–1999
- Matranga, Dave 2003–2005
- Matsui, Hideki 2003–2012
- Matsui, Kazuo 2004–2010
- Matsui, Yuki 2024–
- Matsuzaka, Daisuke 2007–2014
- Mattern, Al 1908–1912
- Mattes, Troy 2001–2001
- Matteson, C. V. 1884–1884
- Matteson, Eddie 1914–1918
- Mattheus, Ryan 2011–2015
- Matthews, Brice 2025–
- Matthews, Charles 1891–1891
- Matthews, Dick
- Matthews, Fran
- Matthews, Gary 1972–1987
- Matthews, Jack
- Matthews, Jesse
- Matthews, Joe 1922–1922
- Matthews, Mike 2000–2005
- Matthews, Wid 1923–1925
- Matthews, William 1909–1909
- Matthews, Zebby 2024–
- Matthewson, Dale 1943–1944
- Matthias, Steve 1884–1884
- Mattick, Bobby 1938–1942
- Mattick, Wally 1912–1918
- Mattimore, Mike 1887–1890
- Mattingly, Don 1982–1995
- Mattingly, Earl 1931–1931
- Mattis, Ralph 1914–1914
- Mattison, Kevin 2012–2012
- Mattox, Cloy 1929–1929
- Mattox, Jim 1922–1923
- Mattson, Isaac 2021–
- Matula, Rick 1979–1981
- Matusz, Brian 2009–2016
- Matuszek, Len 1981–1987
- Matuzak, Harry 1934–1936
- Matz, Steven 2015–
- Matzek, Tyler 2014–
- Mauch, Gene 1944–1957
- Mauck, Hal 1893–1893
- Mauer, Fred 1886–1886
- Mauer, Joe 2004–2018
- Maul, Al 1884–1901
- Mauldin, Mark 1934–1934
- Maun, Ernie 1924–1926
- Mauney, Dick 1945–1947
- Maupin, Harry 1898–1899
- Maurer, Brandon 2013–2018
- Maurer, Dave 2000–2004
- Maurer, Rob 1991–1992
- Mauricio, Ronny 2023–2023
- Mauriello, Ralph 1958–1958
- Mauro, Carmen 1948–1953
- Mauser, Tim 1991–1995
- Mavis, Bob 1949–1949
- Maxcy, Brian 1995–1996
- Maxie, Larry 1969–1969
- Maxvill, Dal 1962–1975
- Maxwell,
- Maxwell, Bert 1906–1914
- Maxwell, Bruce 2016–2018
- Maxwell, Charlie 1950–1964
- Maxwell, Jason 1998–2001
- Maxwell, Justin 2007–2015
- Maxwell, Zach 2025–
- Maxwell, Zearlee
- May, Buckshot 1924–1924
- May, Carlos 1968–1977
- May, Darrell 1995–2005
- May, Dave 1967–1978
- May, Derrick 1990–1999
- May, Dustin 2019–
- May, Jacob 2017–2017
- May, Jakie 1917–1932
- May, Jerry 1964–1973
- May, Joe
- May, Lee 1965–1982
- May, Lucas 2010–2010
- May, Merrill 1939–1943
- May, Milt 1970–1984
- May, Rudy 1965–1983
- May, Scott 1988–1991
- May, Trevor 2014–2023
- Maya, Yunesky 2010–2013
- Mayberry, John 1968–1982
- Maybin, Cameron 2007–2021
- Maye, Lee 1959–1971
- Mayer, Ed 1890–1891
- Mayer, Erskine 1912–1919
- Mayer, Marcelo 2025–
- Mayer, Sam 1915–1915
- Mayer, Wally 1911–1919
- Mayers, Mike 2016–
- Mayes, Paddy 1911–1911
- Mayfield, Jack 2019–2022
- Maynard, Buster 1940–1946
- Maynard, Chick 1922–1922
- Mayne, Brent 1990–2004
- Mayo, Coby 2024–
- Mayo, Eddie 1936–1948
- Mayo, Jackie 1948–1953
- Mayo, Jimmy
- Mays,
- Mays, Al 1885–1890
- Mays, Carl 1915–1929
- Mays, Dave
- Mays, Joe 1999–2006
- Mays, Willie 1951–1973
- Maysey, Matt 1992–1993
- Maysonet, Edwin 2008–2012
- Mayweather, Ed
- Mayza, Tim 2017–
- Maza, Luis 2008–2008
- Mazara, Nomar 2016–2022
- Mazeika, Patrick 2021–2022
- Mazeroski, Bill 1956–1972
- Mazur, Adam 2024–
- Mazza, Chris 2019–2022
- Mazzaro, Vin 2009–2016
- Mazzera, Mel 1935–1940
- Mazzilli, Lee 1976–1989
- Mazzoni, Cory 2015–2018
- McAdams, Jack 1911–1911
- McAdoo, Tullie
- McAfee, Bill 1930–1934
- McAleer, Jimmy 1889–1907
- McAleese, Jack 1901–1909
- McAllester, Bill 1913–1913
- McAllister, Frank
- McAllister, George
- McAllister, Sport 1896–1903
- McAllister, Zach 2011–2023
- McAnally, Ernie 1971–1974
- McAnany, Jim 1958–1962
- McAndrew, Jamie 1995–1997
- McAndrew, Jim 1968–1974
- McAnulty, Paul 2005–2010
- McArthur, Dixie 1914–1914
- McArthur, James 2023–
- McAtee, Michael 1871–1872
- McAtee, Ulysses
- McAuley, Ike 1914–1925
- McAuliffe, Dick 1960–1975
- McAuliffe, Gene 1904–1904
- McAvoy, George 1914–1914
- McAvoy, Tom 1959–1959
- McAvoy, Wickey 1913–1919
- McBean, Al 1961–1970
- McBee, Pryor 1926–1926
- McBeth, Marcus 2007–2007
- McBride, 1890–1890
- McBride, Algie 1896–1901
- McBride, Bake 1973–1983
- McBride, Dick 1871–1876
- McBride, Fred
- McBride, George 1901–1920
- McBride, Ken 1959–1965
- McBride, Macay 2005–2007
- McBride, Matt 2012–2016
- McBride, Pete 1898–1899
- McBride, Tom 1943–1948
- McBride, Tuts
- McBroom, Ryan 2019–2021
- McCabb,
- McCabe, Bill 1918–1920
- McCabe, Dick 1918–1922
- McCabe, Joe 1964–1965
- McCabe, Ralph 1946–1946
- McCabe, Swat 1909–1910
- McCabe, Tim 1915–1918
- McCaffery, Harry 1882–1883
- McCaffrey, Bill 1885–1885
- McCaffrey, Sparrow 1889–1889
- McCahan, Bill 1946–1949
- McCall, Bill
- McCall, Brian 1962–1963
- McCall, Dutch 1948–1948
- McCall, Henry
- McCall, Larry 1977–1979
- McCall, Windy 1948–1957
- McCallister, Jack
- McCament, Randy 1989–1990
- McCandless, Jack 1914–1915
- McCann, Brian 2005–2019
- McCann, Emmet 1920–1926
- McCann, Gene 1901–1902
- McCann, James 2014–
- McCann, Kyle 2024–
- McCardell, Roger 1959–1959
- McCarren, Bill 1923–1923
- McCarthy, Alex 1910–1917
- McCarthy, Arch 1902–1902
- McCarthy, Bill 1905–1907
- McCarthy, Brandon 2005–2018
- McCarthy, Greg 1996–1998
- McCarthy, Jack 1893–1907
- McCarthy, Jake 2021–
- McCarthy, Jerry 1948–1948
- McCarthy, Joe 1905–1906
- McCarthy, Johnny 1934–1948
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