or
Player positions provided by the CFL and errors are known to exist
Other teams associated with the Saskatchewan Roughriders:
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| MacAuley, Bob | LB | 5 | 1 (1979) | |
| MacCallum, Tom Jr. | T | 21 | 2 (1993–1994) | |
| MacDonald, Daniel | LS | 6 | 1 (2016) | |
| MacDonnell, Benny | G | 3 | 1 (1957) | OTT |
| MacDougall, Keenan | LB, S | 11 | 1 (2015) | CGY |
| MacIver, Doug | DT | 48 | 3 (1979–1981) | TOR, WPG |
| Mack, Tracey | LB | 6 | 1 (1987) | OTT, WPG |
| MacKenzie, Doug | FB | 20 | 2 (1959, 1961) | |
| Mackey, Ron | DT | 1 | 1 (1983) | |
| MacMillan, Ivan | K | 1 | 1 (1975) | BC, OTT, TOR |
| Macoritti, Bob | K | 77 | 5 (1976–1980) | WPG |
| Madsen, Lynn | DE | 8 | 1 (1987) | OTT |
| Maggitt, Curt | DL | 9 | 1 (2018) | |
| Magnuson, Quinn | G | 1 | 1 (1994) | MTL, OTT, WPG |
| Maguire, Mickey | HB | 14 | 1 (1951) | CGY, MTL, WPG |
| Mahoney, Mike | LB | 22 | 2 (2005–2006) | CGY, WPG |
| Makowsky, Gene | G, OL, OT | 286 | 17 (1995–2011) | |
| Mallett, Jason | DB | 64 | 4 (1997, 2001–2003) | HAM, WPG |
| Malveaux, Kelly | DB | 2 | 1 (1999) | CGY, EDM, MTL, WPG |
| Manastersky, Tom | HB | 7 | 1 (1954) | MTL |
| Manchuk, Bill | LB | 147 | 10 (1971–1980) | EDM |
| Manley, Wilton | DE | 2 | 1 (1965) | |
| Manz, Jim | FB | 13 | 2 (1982–1983) | |
| Mark, Johnny | K | 1 | 1 (2016) | |
| Marks, Vic | FB | 44 | 5 (1956–1960) | |
| Marlow, Bobby | HB | 86 | 7 (1953–1959) | |
| Marsh, Curtis | WR | 26 | 2 (2000–2001) | |
| Marshall, Cameron | RB | 13 | 2 (2017–2018) | HAM, WPG |
| Marshall, Jim | DB | 31 | 3 (1975–1976, 1979) | MTL, TOR |
| Marshall, Jim | E, T | 9 | 1 (1959) | |
| Marshall, Nick | DB | 20 | 2 (2018–2019) | |
| Marshall, Vincent | WR | 8 | 2 (2007–2008) | |
| Martin, Jack | E | 1 | 1 (1946) | REG |
| Martin, Mel | LB | 3 | 1 (1979) | |
| Martin, Moe | FB, HB | 57 | 5 (1953–1957) | |
| Martin, Pete | G | 59 | 6 (1946–1951) | REG |
| Martin, Tracy | WR | 3 | 1 (1991) | |
| Maruska, Mike | HB | 23 | 3 (1952–1954) | OTT |
| Masnaghetti, Joe Jr. | T | 3 | 1 (1952) | |
| Mason, Kevin | QB | 23 | 2 (1996–1997) | EDM, WPG |
| Mason, Tre | RB | 18 | 1 (2018) | |
| Matich, Brent | P | 80 | 5 (1992–1996) | CGY |
| Matocha, Mike | DT | 3 | 1 (1980) | |
| Mattingly, Randy | QB | 32 | 2 (1974–1975) | HAM |
| Maurer, Mike | RB | 40 | 4 (1997–2000) | BC, EDM, OTT |
| Mavrin, Dennis | DB | 35 | 2 (2003–2004) | |
| Maxie, Demetrious | DE | 26 | 2 (2000–2001) | BAL, CGY, MTL, TOR |
| Mayfield, Curtis | WR | 66 | 4 (1996–1999) | LV, SHR |
| Mays, Taylor | DB | 1 | 1 (2017) | |
| Maze, Terrell | DB, DHB | 57 | 4 (2012–2015) | |
| Mazurak, Steve | WR | 108 | 8 (1973–1980) | |
| McArthur, Dane | RB, SB | 12 | 2 (1991, 1993) | |
| McBride, Billy | DB, DE | 45 | 4 (1980–1983) | BC, OTT |
| McCall, Ron | TE | 5 | 1 (1969) | |
| McCalla, LaDouphyous | DB | 91 | 6 (2000–2005) | |
| McCallum, Paul | K, P | 185 | 13 (1994–2005, 2015) | BC, OTT |
| McCarty, Chance | DE | 18 | 1 (2000) | |
| McCauley, Tango | OL | 18 | 2 (2003, 2005) | BC, MTL |
| McCloud, Kim | DB | 24 | 2 (1991–1992) | |
| McCord, Archie | G | 61 | 4 (1971–1974) | |
| McCormack, Greg | DE, T | 27 | 2 (1988, 1990) | EDM |
| McCorquindale, John | FB, RB | 30 | 2 (1981–1982) | HAM, WPG |
| McCrary, David | DB | 1 | 1 (1991) | CGY |
| McCray, L.J. | DB | 3 | 1 (2019) | |
| McCray, Tim | RB | 54 | 5 (1986–1990) | OTT |
| McCullough, Mike | LB | 185 | 11 (2003–2013) | |
| McCullough, Saladin | RB | 1 | 1 (2004) | CGY, EDM |
| McDavid, Marcus | DB | 17 | 1 (2000) | |
| McDermott, Fran | DB | 73 | 5 (1982–1986) | |
| McDonald, Bob | G | 14 | 1 (1961) | |
| McDonald, Brandon | DHB | 4 | 1 (2016) | CGY, OTT |
| McDonald, Mark | WR | 5 | 1 (1979) | BC, CGY, TOR, WPG |
| McDonald, Ray | WR | 31 | 3 (1987–1989) | OTT |
| McEachern, Ken | DB | 132 | 10 (1974–1982, 1984) | TOR |
| McEachern, Ted | LB | 13 | 1 (1975) | BC, TOR, WPG |
| McElveen, Jermaine | DL | 15 | 1 (2013) | HAM, MTL |
| McEwan, Art | G | 94 | 8 (1947–1954) | |
| McFadyen, George | HB | 0 | 1 (1954) | |
| McFarland, Jack | T | 3 | 1 (1947) | |
| McFaul, Jim | HB, T | 44 | 4 (1949–1952) | OTT |
| McGee, Sylvester “Molly” | RB | 25 | 4 (1976–1979) | OTT |
| McGrath, Gerry | P | 17 | 2 (1985–1986) | MTL |
| McGriggs, Lamar | LB | 10 | 1 (1997) | HAM, OTT, WPG |
| McGruder, Mike “Scooter” | DB | 46 | 3 (1986–1988) | |
| McHenry, Scott | FB, WR | 53 | 5 (2011–2015) | WPG |
| McInnis, Justin | WR | 7 | 1 (2019) | |
| McKean, Jimmy | DB, P | 6 | 1 (1966) | MTL |
| Mckeiver, Bob | T | 0 | 1 (1958) | |
| McKenzie, Anton | LB | 30 | 3 (2006–2008) | BC, OTT |
| McKenzie, Chris | CB, DB | 56 | 4 (2009–2012) | |
| McKeta, Donald | HB | 5 | 1 (1961) | |
| McKim, Ken | G | 14 | 1 (1951) | TOR |
| McKinley, Cedric | DT | 4 | 1 (2016) | EDM |
| McKinney, Benny | E | 2 | 1 (1946) | |
| McKinnie, Silas | HB, RB | 56 | 4 (1968–1971) | CGY |
| McKnight, Joe | RB | 3 | 1 (2016) | EDM |
| McKoy, Dave | WR | 9 | 3 (2007–2009) | |
| McLeod, Andy | LB | 35 | 3 (1973–1975) | OTT |
| McMillan, Bob | HB | 28 | 3 (1952–1954) | |
| McMillon, Todd | DB | 48 | 3 (1997–1999) | |
| McNair, Fred | QB | 14 | 1 (1992) | TOR |
| McNaughton, Jim | TE | 1 | 1 (1964) | BC |
| McPhail, George | HB | 13 | 1 (1949) | MTL, OTT, WPG |
| McQuaid, Dick | HB | 11 | 2 (1946–1947) | REG |
| McQuarters, Ed | DE, G, T | 107 | 9 (1966–1974) | |
| McSeed, Larry | LB | 5 | 1 (1998) | MTL |
| McTague, Mike | K, P, SB | 17 | 2 (1986–1987) | CGY, MTL |
| McWilliams, Jon | E | 16 | 1 (1956) | |
| Meadmore, Ron | DE, E | 45 | 4 (1962–1965) | WPG |
| Means, Solomon | DB | 5 | 1 (2019) | EDM |
| Melton, Terrence | DE | 36 | 2 (2002–2003) | |
| Mertile, Junior | CB, DHB | 9 | 1 (2015) | |
| Merz, Wally | E | 16 | 1 (1957) | |
| Messam, Jerome | RB | 35 | 3 (2014–2015, 2018) | BC, CGY, EDM, MTL |
| Middleton, Mike | LB | 5 | 1 (1993) | |
| Milhouse, Greg Jr. | DT | 1 | 1 (2016) | |
| Miller, Allen | T | 4 | 1 (1968) | HAM, WPG |
| Miller, Bruce | DB | 3 | 1 (1985) | |
| Miller, Dan | G | 1 | 1 (1956) | |
| Miller, Joe | T | 48 | 5 (1976–1980) | OTT |
| Miller, Keith | LB | 7 | 1 (1979) | |
| Miller, Peter | LB | 21 | 2 (1993–1994) | BC, TOR |
| Miller, Prince | DB | 14 | 1 (2013) | |
| Miller, Ray | T | 3 | 1 (1969) | |
| Miller, Bob | E, HB | 37 | 3 (1960–1962) | MTL, WPG |
| Miller, Steven | RB | 5 | 2 (2014–2015) | |
| Mills, Tommy | DB | 1 | 1 (1978) | HAM |
| Milo, Chris | K, P | 63 | 5 (2011–2015) | EDM, OTT |
| Milo, Ray | DB | 12 | 3 (1978–1980) | |
| Milton, Aaron | RB | 3 | 1 (2017) | EDM |
| Mimbs, Robert | RB | 33 | 3 (1995–1997) | BC, WPG |
| Mince, Walt | HB | 2 | 1 (1962) | |
| Minter, Zach | DL | 6 | 1 (2017) | BC, CGY |
| Mitchell, Jackie | DB, LB | 96 | 7 (2000–2006) | |
| Mitchell, Jason | WR | 2 | 1 (2007) | |
| Mitchell, Kyle | DE, DL | 4 | 2 (2006–2007) | |
| Mitchell, LeRon | DB | 30 | 4 (2008–2011) | TOR |
| Mitton, Gordon | E, HB | 11 | 2 (1946, 1948) | REG |
| Mohr, Rick | DE | 30 | 2 (1984–1985) | TOR |
| Molnar, Steve | FB, RB | 141 | 10 (1969–1978) | |
| Moncrief, Derrick | LB | 26 | 3 (2017–2019) | |
| Monios, Tom | SB | 3 | 1 (1996) | |
| Moniz, Bryant | QB | 2 | 1 (2016) | CGY, HAM |
| Monroe, Andre | DL | 8 | 1 (2015) | |
| Monroe, James | C | 63 | 4 (1997–2000) | OTT |
| Montagano, Dave | DB | 11 | 2 (1975, 1978) | EDM, HAM, WPG |
| Moore, Andrew | OL | 31 | 2 (2001–2002) | TOR |
| Moore, Ken | DT, OL | 88 | 6 (1985–1990) | CGY |
| Moore, Kyran | WR | 18 | 2 (2018–2019) | |
| Moore, Spencer | FB, RB, WR | 81 | 6 (2013–2018) | MTL |
| Moore, Travis | SB, WR | 41 | 3 (2003–2005) | CGY |
| Moreino, Joe Jr. | DT | 6 | 1 (1979) | |
| Morgan, Karl | DT | 16 | 1 (1983) | |
| Morgan, Omarr | DB | 174 | 10 (2000–2006, 2008–2010) | EDM |
| Morin-Roberge, Jean-Francois | OL | 0 | 1 (2008) | TOR |
| Morley, Demetrice | DB, LB | 3 | 1 (2016) | CGY, TOR |
| Morley, Steven | OL | 6 | 1 (2008) | CGY, TOR, WPG |
| Morris, Eric | WR | 4 | 1 (2009) | |
| Morris, Greg | RB | 27 | 2 (2016–2017) | EDM, OTT |
| Moses, Cedric | DB | 6 | 1 (1989) | |
| Moss, Rick | DB | 5 | 1 (1979) | |
| Moss, Sinorice | WR | 2 | 1 (2012) | |
| Moss, Tristan | DB | 2 | 1 (1998) | |
| Moten, Gary | LB | 9 | 1 (1986) | TOR, WPG |
| Mrabure-Ajufo, Ese | DE, DL, DT | 32 | 2 (2016–2017) | BC, CGY |
| Muamba, Henoc | LB | 22 | 2 (2016–2017) | MTL, WPG |
| Muir, Peter | HB | 1 | 1 (1956) | CGY |
| Muirbrook, Shay | LB | 3 | 1 (1999) | WPG |
| Mulgado, Bobby | HB | 12 | 2 (1958–1959) | |
| Mullinder, Luc | DE, DL | 112 | 8 (2004–2011) | HAM, MTL |
| Munford, Chris | DB | 12 | 1 (1993) | HAM, TOR |
| Munn, Lee | HB, T | 46 | 4 (1953–1956) | |
| Murphy, Kevin | FB | 0 | 1 (1951) | |
| Murphy, Llewellyn “Yo” | WR | 12 | 2 (2006–2007) | BC, OTT |
| Murphy, Montez | DL | 8 | 2 (2010–2011) | EDM, HAM |
| Myers, Bob | HB | 25 | 2 (1962–1963) | |
| Myhra, Steve | K, T | 5 | 1 (1962) | |
| “M” player count: 177 | ||||