Player positions provided by the CFL and errors are known to exist
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| Kabongo, Patrick | OL | 121 | 8 (2004–2011) | BC |
| Kachman, Clarence | FL | 3 | 1 (1965) | |
| Kalin, John | DB | 28 | 2 (1994–1995) | CGY, MTL, WPG |
| Kalmanir, Tommy | HB | 1 | 1 (1955) | |
| Kankolongo, Nehemie | LB | 1 | 1 (2017) | BC, MTL, SSK, WPG |
| Kanya, Nathan | LB | 27 | 2 (2013–2014) | HAM, SSK |
| Kasapis, Gus | DT | 5 | 2 (1966–1967) | BC, CGY |
| Kashama, Kalonji | DE | 2 | 1 (2017) | OTT, SSK |
| Kauric, Jerry | K | 51 | 4 (1987–1989, 1991) | CGY |
| Kean, Warren | K | 1 | 1 (2007) | SSK, WPG |
| Kearns, Dan | DL | 146 | 9 (1980–1988) | WPG |
| Kehoe, Sean | RB | 23 | 2 (1981–1982) | WPG |
| Kehrer, Tony | HB | 23 | 2 (1962–1963) | WPG |
| Keliikuli, Gene “Buster” | G | 1 | 1 (1965) | |
| Kell, Curtis “Chip” | C | 15 | 2 (1971–1972) | |
| Kellett, Matt | K | 12 | 1 (1999) | BC, MTL, OTT |
| Kelley, Chris | WR | 7 | 1 (2005) | |
| Kelley, Gorden | C | 8 | 1 (1965) | |
| Kellogg, Jackie | DB | 25 | 2 (2001–2002) | CGY |
| Kelly, Brian | WR | 137 | 9 (1979–1987) | |
| Kelly, Colin | OL | 30 | 2 (2017–2018) | OTT |
| Kelly, Con | FW, FB, HB | 31 | 2 (1955–1956) | |
| Kelly, Tim | LB | 7 | 2 (1971–1972) | |
| Kemp, Jimmy | QB | 36 | 2 (1997–1998) | MTL, SA, SAC, SSK, TOR |
| Kempf, Peter | E, K | 32 | 2 (1967–1968) | BC, MTL |
| Kent, Clint | LB | 15 | 1 (2012) | MTL, WPG |
| Kepley, Dan | LB | 128 | 10 (1975–1984) | |
| Kerbow, Randy | E, QB, WR | 55 | 4 (1965–1968) | |
| Kerr, Mike | LB | 1 | 1 (1993) | BAL |
| Kerychuk, Larry | HB, P | 26 | 2 (1969–1970) | WPG |
| Kettlewell, Roger | DB | 16 | 1 (1969) | BC |
| Keyes, Bobby | DB | 13 | 1 (2009) | |
| Keys, Eagle “Buddy” | C | 45 | 3 (1952–1954) | MTL |
| Keys, Isaac II | LB | 8 | 1 (2007) | |
| Kimoff, Bob | FB, HB | 45 | 4 (1955–1958) | |
| King, Henry | TE | 26 | 2 (1970–1971) | |
| King, Mike | FB, G, T | 94 | 8 (1950–1957) | TOR |
| King, Neil | DB, S | 40 | 3 (2016–2018) | HAM |
| King, Pat | E | 11 | 1 (1949) | |
| King, Ryan | LB, LS | 104 | 7 (2012–2018) | |
| Kiniski, Gene | T | 25 | 3 (1949, 1952–1953) | |
| Kinlaw, Rodney | RB | 1 | 1 (2009) | |
| Kinney, Kelvin | DL | 29 | 3 (2002–2004) | TOR |
| Kirk, Ernie | DT | 18 | 2 (1975–1976) | |
| Kirk, Paul | FW, HB | 11 | 2 (1938–1939) | REG |
| Kirkland, Tremayne | WR | 3 | 1 (2010) | |
| Kmech, Mike | G | 105 | 7 (1956–1962) | |
| Knechtel, Dave | DT | 16 | 1 (1973) | TOR, WPG |
| Koch, Cary | WR | 26 | 2 (2012–2013) | HAM, SSK |
| Koch, Kyle | OL | 66 | 4 (2009–2012) | TOR, WPG |
| Koinzan, Craig | G | 2 | 1 (1974) | CGY |
| Konar, Adam | LB | 34 | 4 (2015–2018) | |
| Konihowski, John | WR | 65 | 7 (1974–1980) | WPG |
| Kose, Jeremiah | LB | 1 | 1 (2018) | OTT |
| Kostin, Mike | QB | 16 | 1 (1964) | |
| Kozak, Eddie “Tiger” | U | 3 | 1 (1951) | |
| Kratzer, Greg | WR | 6 | 1 (1988) | |
| Krause, Jerry | G, T | 9 | 1 (1949) | |
| Krausnick-Groh, Alex | LG, OL | 15 | 2 (2013, 2015) | OTT, SSK |
| Krebs, Tom | G | 13 | 1 (1983) | CGY |
| Kruger, Oscar | DB, HB | 168 | 12 (1954–1965) | |
| Krupey, Steve | G, OL | 49 | 5 (1991–1995) | OTT |
| Kucy, Ed | OL | 18 | 1 (1996) | WPG |
| Kunyk, Gerald | P | 6 | 1 (1977) | CGY, OTT, WPG |
| Kupp, Andy | T | 1 | 1 (1973) | |
| Kwong, Normie | HB | 150 | 10 (1951–1960) | CGY |
| “K” player count: 66 | ||||