or
Player positions provided by the CFL and errors are known to exist
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| Maas, Jason | QB | 9 | 1 (2007) | EDM, HAM |
| MacDonald, Pat | DL | 9 | 1 (2010) | CGY, WPG |
| MacGillivray, Dave | WR | 3 | 1 (1969) | |
| MacKay, Glenn | WR | 4 | 1 (2009) | EDM, HAM |
| Mackey, Louis | LB | 16 | 2 (2006–2007) | |
| MacKinlay, Duncan | LB | 3 | 1 (1982) | TOR, WPG |
| MacLellan, Bob | C, LB | 66 | 6 (1955–1960) | |
| MacPherson, Ian | C, T | 2 | 1 (1976) | HAM |
| Maddocks, Ron | QB | 14 | 1 (1963) | |
| Maggiacomo, Anthony | LB | 4 | 1 (2009) | WPG |
| Magnuson, Quinn | OL | 10 | 1 (1996) | OTT, SSK, WPG |
| Maguire, Mickey | HB | 3 | 1 (1949) | CGY, SSK, WPG |
| Mahi, Don | RB | 2 | 1 (1973) | |
| Maitland, Doug | HB | 38 | 4 (1946–1949) | MTL |
| Majors, Johnny | HB | 4 | 1 (1957) | |
| Makowiecki, Al | G, T | 22 | 2 (1955, 1957) | |
| Maloney, Mike | DT | 28 | 2 (1972–1973) | |
| Malveaux, Kelly | DB | 36 | 2 (2004–2005) | CGY, EDM, SSK, WPG |
| Manastersky, Tom | HB | 79 | 8 (1946–1947, 1949–1954) | SSK |
| Mangold, Roland | G | 63 | 5 (1979–1981, 1983–1984) | TOR |
| Manley, Andrew | QB | 3 | 1 (2015) | |
| Manziel, Johnny | QB | 11 | 1 (2018) | HAM |
| Marc, Emmanuel | RB | 0 | 1 (2011) | TOR |
| Marcil, Brian | LB | 9 | 1 (1972) | CGY, OTT |
| Marentette, Ed | QB | 2 | 1 (1959) | KW |
| Mariscal, Mark | K | 6 | 1 (2004) | |
| Marriott, Francis “Bubba” | QB | 9 | 1 (1963) | |
| Marsh, Tanner | QB | 44 | 3 (2013–2015) | |
| Marshall, Jim | DB | 11 | 3 (1979, 1981–1982) | SSK, TOR |
| Martell, Pete | LB | 11 | 2 (1982–1983) | WPG |
| Martin, David | DB | 2 | 1 (1986) | |
| Martin, George | LB | 7 | 2 (1982–1983) | |
| Martin, Jim | G | 0 | 1 (1957) | |
| Martin, Mike | FL, QB | 3 | 1 (1968) | |
| Martin, Paul | DT | 15 | 2 (1984–1985) | |
| Martin, Robert | E | 4 | 1 (1969) | |
| Martin, Vaughn | DT | 7 | 1 (2016) | |
| Martinello, Marty | G | 54 | 4 (1954–1957) | BC, BRNT, HAM, TOR |
| Massey, Bill | RB | 7 | 1 (1971) | |
| Masson, Pascal | DB | 13 | 2 (2007–2008) | CGY |
| Mathews, Jeff | QB | 4 | 1 (2018) | HAM, TOR |
| Matte, Kristian | C, LG, OL | 145 | 10 (2010, 2012–2019, 2021) | |
| Matthews, Chris | WR | 5 | 1 (2019) | CGY, WPG |
| Maxey-Penton, Aarion | DB | 1 | 1 (2019) | |
| Maxie, Demetrious | DE | 10 | 1 (1996) | BAL, CGY, SSK, TOR |
| Mayne, Shawn | DE | 6 | 1 (2009) | CGY, WPG |
| Maypray, Tim II | WR | 22 | 2 (2010–2011) | OTT |
| Mays, Willie III | DL | 1 | 1 (2018) | |
| Mbaye, Khadim Cheickh | LB | 3 | 1 (2018) | BC |
| McCance, Ches | E, FW, K | 60 | 5 (1946–1950) | WPG, WRCAFB |
| McCarthy, Bob | HB | 11 | 1 (1970) | CGY, EDM, OTT |
| McCauley, Tango | OL | 5 | 1 (2006) | BC, SSK |
| McCoy, Bill | HB | 4 | 1 (1957) | |
| McCuller, Jeraill | OL | 2 | 1 (2011) | OTT |
| McCutcheon, Joe | C | 1 | 1 (1953) | |
| McDaniel, Cam | RB | 1 | 1 (2016) | TOR |
| McElveen, Jermaine | DE, DT | 57 | 5 (2008–2011, 2014) | HAM, SSK |
| McFall, Mickey | T | 2 | 1 (1946) | MTL |
| McFarlane, Bob | HB | 7 | 2 (1946–1947) | |
| McGeary, Clarence Jr. | T | 7 | 1 (1951) | |
| McGhee, Greg | QB | 0 | 1 (2016) | BC, TOR |
| McGrath, Gerry | K, P | 41 | 4 (1980–1981, 1983–1984) | SSK |
| McGrath, Joe | C | 5 | 1 (1970) | |
| McKean, Jimmy | P | 19 | 2 (1964–1965) | SSK |
| McKnight, Brody | K | 0 | 1 (2012) | EDM, HAM |
| McLennan, Ivan | DL | 11 | 1 (2017) | BC, CGY |
| McLennan, Spencer | SB | 25 | 2 (1996–1997) | BC, WPG |
| McMahon, Michael | QB | 0 | 1 (2007) | TOR |
| McMann, Chuck | HB, RB, TE | 130 | 10 (1976–1985) | |
| McMillan, Vantrel | DL | 4 | 1 (2018) | |
| McMillian, Alfonzo | DB | 7 | 1 (1982) | HAM |
| McNichol, Doug | E | 101 | 8 (1953–1960) | TOR |
| McPartland, Peter | HB | 3 | 1 (1949) | TOR |
| McPhail, George | HB | 1 | 1 (1953) | OTT, SSK, WPG |
| McPherson, Adrian | QB | 80 | 5 (2008–2012) | TOR |
| McSeed, Larry | LB | 15 | 2 (1997–1998) | SSK |
| McTague, Mike | K, P, SB, WR | 18 | 2 (1985–1986) | CGY, SSK |
| Meadows, Ed “Country” | T | 3 | 1 (1961) | |
| Megna, Marc | DE | 53 | 4 (2002–2005) | |
| Meirowitz, Marv | T | 19 | 3 (1952–1954) | |
| Ménard, David | DL | 10 | 1 (2021) | BC |
| Mennie, Scott | LB | 6 | 1 (2006) | WPG |
| Merry, George | T | 0 | 1 (1949) | |
| Messam, Jerome | RB | 15 | 1 (2013) | BC, CGY, EDM, SSK |
| Miele, Robert | DT | 1 | 1 (1972) | |
| Miksza, Chet | C, G | 14 | 1 (1966) | HAM |
| Miles, Barron | DB | 99 | 6 (1998–2000, 2002–2004) | BC |
| Miles, Ellard “Ed” | G, T | 11 | 1 (1946) | MTL, OTT, OTTC |
| Miller, Jim | E | 80 | 6 (1953–1958) | |
| Miller, Ken | DB | 15 | 2 (1981–1982) | CGY, OTT |
| Miller, Bob | HB | 15 | 2 (1959, 1963) | LDN, SSK, WPG |
| Miller, Scott | DT | 1 | 1 (1996) | BAL |
| Miller, Selvesta | DE | 22 | 2 (1999–2000) | |
| Milton, Lance | DB | 7 | 1 (2012) | TOR |
| Mincy, Jonathon | CB, DB | 32 | 2 (2016–2017) | EDM, TOR |
| Minihane, Bob | T | 61 | 5 (1964–1968) | HAM |
| Mira, George | QB | 19 | 2 (1972–1973) | TOR |
| Mitchell, Doug | C | 8 | 1 (1974) | HAM |
| Mitchell, Ed | HB | 18 | 2 (1959–1960) | CGY, KW |
| Mitchell, Joe | RB | 2 | 1 (1978) | |
| Mitchell, Tim | OL | 0 | 1 (2017) | |
| Mitchell, William | LB | 15 | 1 (1986) | EDM, OTT, TOR |
| Mitchener, Jim | HB | 39 | 3 (1952–1954) | BC, CGY |
| Mofford, Ian | HB, RB, TE | 86 | 8 (1974–1979, 1981–1982) | OTT, WPG |
| Mogul, Lou | T | 10 | 1 (1946) | EDM, WPG, WRCAFB |
| Mohring, John | LB | 1 | 1 (2009) | |
| Moir, Darrell | DB | 8 | 1 (1986) | CGY, TOR |
| Moisan, Etienne | WR | 12 | 1 (2019) | |
| Molle, Kevin | OL | 12 | 1 (1986) | CGY |
| Monroe, Aries | LB | 1 | 1 (2002) | CGY |
| Montana, Denis | SB, WR | 18 | 2 (1996–1997) | BC, CGY, EDM, OTT, TOR |
| Montgomery, Michael | DE | 0 | 1 (2012) | |
| Moody, John | FB, K | 12 | 1 (1946) | |
| Moore, D.L. II | WR | 3 | 1 (2013) | |
| Moore, Spencer | FB, WR | 19 | 2 (2019, 2021) | SSK |
| Moore, Wayne | RB | 0 | 1 (2016) | BC |
| Moran, Tom | E, FW, HB | 86 | 9 (1953–1961) | BRNT, HAM |
| Moreau, Jacques | G | 1 | 1 (1996) | OTT |
| Morgan, Dwayne | T | 12 | 1 (2000) | HAM, TOR |
| Moriarty, Tim | G | 0 | 1 (1954) | |
| Morin-Soucy, Nickolas | DE | 7 | 1 (2010) | |
| Morris, Anthony | OL | 2 | 1 (2017) | |
| Morris, Ty | WR | 14 | 1 (1978) | |
| Morrison, Dave | DB | 2 | 1 (1969) | |
| Morton, K.J. | DB | 3 | 1 (2017) | |
| Mosca, Angelo | T | 5 | 1 (1962) | HAM, OTT |
| Muamba, Cauchy | DB | 1 | 1 (2019) | BC, EDM, WPG |
| Muamba, Henoc | LB | 39 | 3 (2015, 2018–2019) | SSK, TOR, WPG |
| Mudge, Dave | OL, OT, T | 41 | 4 (2005–2008) | TOR, WPG |
| Muhammad, Taqiy | DB | 1 | 1 (2005) | |
| Mul-Key, Herb | RB | 3 | 1 (1975) | |
| Mullinder, Luc | DE | 19 | 2 (2011–2012) | HAM, SSK |
| Murphy, Don | HB | 24 | 2 (1968–1969) | |
| Murphy, Roger | WR | 22 | 2 (1967–1968) | |
| Murphy, Ron | T | 47 | 4 (1958–1961) | HAM |
| Murray, Najee | DB, LB | 16 | 3 (2018–2019, 2021) | |
| Murray-Lawrence, Shaq | RB | 2 | 1 (2019) | BC |
| Murrell, Marques | DE | 2 | 1 (2012) | |
| Music, Glen | DB | 1 | 1 (1982) | |
| Myers, Rudy | DB | 6 | 1 (1967) | |
| “M” player count: 140 | ||||