MD. Peter Mack (August 2000 to June 2004)
Arrived from Newcastle United, left for Birmingham City

MD. Liam Mackay (August 2005 to June 2008)
Arrived from Crewe Alexandra, left for Celtic 

ST. Dave Mathieson (April 1895 to May 1908)
FOUNDER MEMBER, left for Manchester United

DF. Steven Matthews   (August 1980 to June 1985)
Arrived from Norwich City, left for Luton Town

DF. Ken Maxfield  (August 1922 to May 1929)
Arrived from Clapton Orient, left for Liverpool

MD. Jim Maybury (August 1927 to May 1933)
Arrived from Rangers, left for Arsenal

MD. Mike Maynard   (December 1980 <Injured>)
Arrived from Youth Team, RETIRED due to injury

MD. Connor McCarthy (February 1998 to May 1998)
Arrived from Youth Team, Released

DF. Paddy McCullen  (August 1963 to May 1970)
Arrived from Manchester United, left for Arsenal

DF. Chris McDonald (August 1945 to May 1966)
Arrived from Youth Team, RETIRED

ST. Junior McDougald (August 2001 to December 2002)
Arrived from Youth Team, left for Dagenham & Redbridge

DF. Doddie McNeill (August 1988 to May 1998)
Arrived from Hearts, left for Aberdeen

MD. Paul McQueen (June 1919 to May 1928)
Arrived from Fulham, left for Chelsea

MD. Quentin Megson  (August 1957 to May 1958)
Arrived from Youth Team, RETIRED due to Injury

ST. Archie Miller (August 1956 to May 1958)
Arrived from Hearts, left for Arsenal

MD. Danny Mills (August 2002 to June 2005)
Arrived from Reading, left for Everton

MD. Craig Minton (September 2003 to June 2004)
Arrived from Chelsea, left for Fulham

MD. Eddie Moliano (August 1999 to June 2001)
Arrived from Crystal Palace, left for FC Jazz

MD. Scott Moore  (August 1989 to July 1998)
Arrived from Youth Team, left for Birmingham City

GK. Tommy Moore (May 2003 to December 2003)
Arrived from Youth Team, RELEASED

MD. Gavin Moradi (July 1998 to July 1999)
Arrived from Palermo, left for Nottingham Forest

DF. George Morgan  (August 1903 to May 1926)
Arrived from Youth Team, RETIRED

MD. Leroy Morris (July 2006 to July 2007)
Arrived from Youth Team, RELEASED

MD. David Morrisey (January 2005 to May 2005)
Arrived from Youth Team, RELEASED

MD. Franz Muller  (August 1994 to August 1998)
Arrived from Nantes, left for Schalke 04

MD. Kabi Munoz (January 2005 to May 2005)
Arrived from Youth Team, DIED