| Players | |||||
|---|---|---|---|---|---|
| Name | Pos | Begin | End | City | State |
| John Mace | P | 1948 | 1948 | Orangeburg | SC |
| DeAngelo Mack | OF | 2007 | 2009 | West Columbia | SC |
| Derrick Mack | OF | 1989 | 1989 | Sumter | SC |
| James Mack | 1911 | 1911 | |||
| Paul Mack | OF | 1957 | 1958 | Gaston | SC | Scott Mackie | OF | 1982 | 1985 | Southington | CT | Tommy MacLane | P | 2001 | 2001 | New Port Richey | FL | Kevin Madden | 3B | 2022 | 2022 | Glenwood | MD | Zack Madden | OF | 2014 | 2015 | Charleston | SC | Bill Magan | 1B | 1959 | 1961 | Hammond | IN |
| Ray (Maggie) Maginn | 3B | 1944 | 1945 | St. Louis | MO |
| Jack Mahoney | P | 2021 | 2022 | Arlington Heights | IL |
| Ryan Mahoney | C | 2004 | 2005 | Patterson | NY |
| Sam Mahoney | C | 2008 | 2008 | Mount Pleasant | SC |
| . Major | 2B | 1919 | 1919 | Craig Makar | P | 1989 | 1990 | Rocky River | OH | Mike Malloy | OF | 1903 | 1904 | Cheraw | SC | A.W. Malone | P | 1900 | 1900 | Mark Mapes | C | 1995 | 1996 | Painted Post | NY | David Marchbanks | P | 2001 | 2003 | Simpsonville | SC |
| John Marquardt | 3B | 1978 | 1979 | Alamogordo | NM |
| Brent Marsh | P | 2005 | 2005 | Tallahassee | FL |
| Bill Marshall | OF | 1952 | 1952 | Darlington | SC |
| Charlie Martin | OF | 1915 | 1916 | ||
| Drew Martin | 1B | 2006 | 2007 | Walterboro | SC | Jared Martin | C | 2015 | 2015 | Dunwoody | GA | Kyle Martin | 1B | 2012 | 2015 | Simpsonville | SC | R. Martin | OF | 1916 | 1916 | W.C. Martin | P | 1903 | 1905 | Randy Martz | P | 1974 | 1977 | Elizabethville | PA |
| Pat Mary | 3B | 1976 | 1976 | Washington | PA |
| Evan Marzilli | OF | 2010 | 2012 | Cranston | RI |
| Arnie Marzullo | P | 1969 | 1970 | Piedmont | CA |
| . Mason | 1895 | 1895 | |||
| . Mason | 1905 | 1905 | Jose Mata | P | 2010 | 2011 | Miami Lakes | FL | Adam Matthews | OF | 2010 | 2012 | Lexington | SC | Frank Matusek | C | 1973 | 1974 | Bob Mauro | OF | 1966 | 1968 | Madison | NJ | Brock Maxwell | OF | 2014 | 2014 | Suwanee | GA |
| . Mayes | 1905 | 1905 | |||
| Wally Maynard | P | 1992 | 1995 | Sumter | SC |
| Jovi McAndrew | 3B | 1989 | 1990 | Rockville | MD |
| Marcus McBeth | OF | 1998 | 2001 | Enoree | SC |
| Zac McCamie | P | 2004 | 2005 | Orlando | FL | Pat. McCance | P | 1997 | 1997 | Joe McCarthy | OF | 1980 | 1981 | Scranton | PA | Tim McCarty | P | 2005 | 2005 | Irmo | SC | Jack McCathern | OF | 1962 | 1964 | Columbia | SC | Bailey McClinton | 2B | 1968 | 1968 |
| Toy McCord | SS | 1966 | 1968 | Manning | SC |
| Shack McCrady | 1932 | 1934 | Columbia | SC | |
| Capers McCravy | P | 1937 | 1938 | Easley | SC |
| Thomas McCutchen | 1895 | 1895 | |||
| Will McCutchen | OF | 1899 | 1899 | Church | SC | Trey McDaniel | 1B | 2003 | 2004 | West Columbia | SC | Josh McDonald | P | 2005 | 2005 | Lexington | SC | Allie McDougall | SS | 1932 | 1934 | Columbia | SC | Ray McElrath | 3B | 1928 | 1928 | Greeleyville | SC | Horace McGee | OF | 1930 | 1930 | Greenville | SC |
| Mike McGee | OF | 1989 | 1990 | Spartanburg | SC |
| John McGhee | 1899 | 1899 | |||
| Bill McGowan | P | 1912 | 1913 | ||
| M. McGowan | 1912 | 1912 | |||
| Will McGregor | P | 2020 | 2020 | Anderson | SC | Mike McGuire | 3B | 1992 | 1993 | Nevada | OH | John McHenry | 2B | 2000 | 2000 | Sparks | NV | Brandon McIlwain | OF | 2016 | 2017 | Newtown | PA | James (Doc) McJames | 0 | 0 | Douglas McKay | 2B | 1903 | 1905 | Columbia | SC |
| C.H. McLaurin | 1894 | 1897 | McColl | SC | |
| Chuck McLean | OF | 1974 | 1978 | Rockingham | NC |
| Loveard McMichael | P | 1963 | 1966 | Americus | GA |
| Bill McMillan | 2B | 1942 | 1943 | Mullins | SC |
| Cole McMillan | P | 2015 | 2015 | Lexington | SC | Mark McMillan | 3B | 1983 | 1984 | Bamberg | SC | Mark McMillan | 1963 | 1963 | Tom McMillan | SS | 1909 | 1913 | Ulmers | SC | Trey McNickle | P | 2014 | 2014 | Land O'Lakes | FL | . McSween | 1B | 1911 | 1912 |
| G.M. McTeer | 1913 | 1914 | Early Branch | SC | |
| Pete Meade | P | 1986 | 1988 | Southington | CT |
| Grimes Medlin | P | 2009 | 2009 | Benson | NC |
| Wally Medlin | P | 1965 | 1968 | Ehrhardt | SC |
| Kevin Melillo | 2B | 2002 | 2004 | Lake Bentley | FL | David Mendham | IF | 2021 | 2021 | Dorchester | ONT | Dave Menhart | P | 1986 | 1988 | Mystic | CT | Whit Merrifield | OF | 2008 | 2010 | Advance | NC | Ray Messemer | OF | 1978 | 1978 | Huntington | NY | Cole Messina | C | 2022 | 2022 | Summerville | SC |
| Arthur (Reddy) Metts | 1B | 1910 | 1913 | ||
| John Metzger | P | 1989 | 1990 | Shelby | OH |
| Drew Meyer | SS | 2000 | 2002 | Charleston | SC |
| Frankie Meyer | 1921 | 1924 | Charleston | SC | |
| P.V. Mikell | 1897 | 1897 | . Miller | 1921 | 1921 | Billy Miller | 2B | 1925 | 1927 | Rock Hill | SC | Billy Miller | 1942 | 1943 | Bobby Miller | 2B | 1984 | 1985 | Orlando | FL | Brandon Miller | P | 2009 | 2009 | Greenwood | SC |
| John Mills | P | 1911 | 1914 | ||
| Muddy Mills | P | 1940 | 1940 | ||
| Jim Milner | OF | 1941 | 1943 | Waynesville | NC |
| Brennan Milone | IF | 2020 | 2020 | Woodstock | GA |
| Cody Mincey | P | 2014 | 2015 | Hartsville | SC | Al Mirando | OF | 1966 | 1966 | Bethpage | NY | Eddie Mirmow | 3B | 1919 | 1919 | Allen Mitchell | OF | 1982 | 1986 | Batesburg | SC | Clay Mitchell | P | 2008 | 2008 | Columbia | SC | Jack Mitchell | 1B | 1949 | 1951 | Asheville | NC |
| Tom Mixon | 2B | 1976 | 1978 | Macon | GA |
| Carmen Mlodzinski | P | 2018 | 2019 | Hilton Head | SC |
| Bo Mobley | C | 2000 | 2000 | Waverly Hall | GA |
| Edwin Moise | 1901 | 1901 | Sumter | SC | |
| Gene Molnar | P | 1953 | 1954 | Darlington | SC | C. Montgomery | 1895 | 1895 | Jordan Montgomery | P | 2012 | 2013 | Sumter | SC | Tommy Moody | 2B | 1970 | 1972 | Columbia | SC | Marcus Mooney | SS | 2014 | 2016 | Loxahatchee | FL | Peter Mooney | SS | 2011 | 2011 | Loxahatchee | FL |
| . Moore | 1969 | 1969 | |||
| Bobby Moore | C | 1964 | 1964 | Wellesley | MA |
| Brent Moore | P | 1994 | 1997 | Clearwater | SC |
| Don Moore | P | 1948 | 1948 | Lexington | VA |
| J. Ott Moore | 2B | 1910 | 1912 | Paul Moore | 1903 | 1905 | Lancaster | SC | . Moorman | 1895 | 1895 | Adrian Morales | 3B | 2010 | 2011 | Hialeah | FL | Dan Morgan | OF | 1958 | 1959 | Enka | NC | Reid Morgan | P | 2019 | 2019 | Kingswood | TX |
| Greg Morhardt | 1B | 1982 | 1984 | Winsted | CT |
| Bill Morris | C | 1993 | 1994 | Jackson | SC |
| Cody Morris | P | 2016 | 2018 | Laurel | MD |
| Jeff Morris | OF | 1985 | 1986 | Stone Mountain | GA |
| Craig Mortorana | 2B | 1982 | 1982 | Medford | MA | . Moseley | 1924 | 1924 | Dick Moseley | OF | 1963 | 1965 | Columbia | SC | Rob Mosser | P | 1990 | 1993 | Oley | PA | John Munn | OF | 1932 | 1935 | Bishopville | SC | Logan Munson | P | 2010 | 2012 | Columbia | SC |
| Bart Murphy | 3B | 1977 | 1978 | Boston | MA |
| Curtis Murphy | IF | 2009 | 2009 | West Columbia | SC |
| Brandon Murray | P | 2015 | 2017 | Hobart | IN |
| Dave Murrell | SS | 1964 | 1965 | Florence | SC |
| Tyler Musselwhite | P | 2008 | 2008 | Gainesville | GA | Donnie Myers | SS | 1965 | 1965 | Reevesville | SC | J. Myers | C | 1956 | 1956 | Noah Myers | OF | 2020 | 2020 | Wyoming | ONT |