or
Player positions provided by the CFL and errors are known to exist
| Name | Position | Regular GP | # of Seasons (Years) | Also played for |
|---|---|---|---|---|
| Kalapos, Mike | G, T | 1 | 1 (1951) | |
| Kaluski, Pete | G, T | 8 | 3 (1938, 1940, 1945) | |
| Kanneh, Abdul | CB, DHB | 43 | 3 (2014–2016) | HAM, TOR |
| Karlen, Aaron | DL | 2 | 1 (2016) | |
| Karpuk, Pete | E, HB | 61 | 7 (1948–1953, 1955) | HAM, MTL, OTTC |
| Karrys, Steve | HB | 34 | 3 (1948–1950) | TOR |
| Kaser, Rick | HB | 1 | 1 (1960) | BC |
| Kashama, Kalonji | DE | 26 | 2 (2014–2015) | EDM, SSK |
| Kealey, Howard | E | 1 | 1 (1930) | |
| Kealey, Linus | E | 6 | 1 (1930) | |
| Keeling, Jerry | DB, QB | 30 | 3 (1973–1975) | CGY, HAM |
| Kellett, Matt | K | 14 | 1 (2005) | BC, EDM, MTL |
| Kelly, Colin | RT | 26 | 2 (2014–2015) | EDM |
| Kelly, Joe | HB | 22 | 3 (1959–1961) | |
| Keneally, Chris | T | 7 | 2 (1995–1996) | |
| Kenerson, John | E | 22 | 2 (1963–1964) | MTL, WPG |
| Kennedy, Darnell | QB | 49 | 3 (2003–2005) | CGY, TOR |
| Kennedy, John | G | 6 | 1 (1972) | BC, MTL, TOR |
| Kennedy, Stu | C, G | 20 | 2 (1953–1954) | |
| Khan, Obby | C, OL | 33 | 2 (2004–2005) | CGY, WPG |
| Kidd, Billy Jr. | C | 8 | 1 (1986) | |
| Killett, Charlie | HB | 4 | 1 (1964) | |
| Kimbrough, Tony | QB | 27 | 2 (1989–1990) | BC |
| Kinch, John | RB | 3 | 1 (1979) | HAM, SSK, TOR |
| King, Don | T | 7 | 1 (1955) | |
| King, Emmett | RB | 5 | 1 (1979) | |
| Kirk, Kelvin | WR | 22 | 3 (1981–1983) | CGY, SSK, TOR |
| Kirk, Matt | DL | 18 | 1 (2005) | BC, HAM |
| Kirwan, Andre | WR | 10 | 1 (2003) | TOR |
| Kissell, John | T | 14 | 1 (1953) | KW |
| Klassen, Michael | DL | 25 | 2 (2018–2019) | CGY, MTL |
| Kline, Jack | C | 5 | 1 (1933) | |
| Knight, DeWayne | LB | 33 | 2 (1995–1996) | BC, WPG |
| Knight, Lee | SB | 8 | 1 (1996) | HAM |
| Knox, Jeff Jr. | LB | 4 | 1 (2019) | SSK, TOR |
| Koes, Ron “Killer” Sr. | C, FB, G | 13 | 2 (1960–1961) | SSK |
| Koradi, Jeff | RB | 5 | 1 (1995) | |
| Korchak, Robert “Bud” | E, K | 6 | 1 (1956) | CGY, MTL, WPG |
| Korff, Mark | LB | 5 | 1 (1988) | |
| Korte, Mark | OL | 35 | 2 (2018–2019) | |
| Kose, Jeremiah | LB | 1 | 1 (2016) | EDM |
| Kosmos, Mark | LB | 58 | 5 (1973–1977) | HAM, MTL |
| Kotoff, Boris | FB, HB | 49 | 4 (1954–1957) | BRNT, LDN |
| Kowalik, Johnny Sr. | G, T | 6 | 1 (1934) | |
| Kralik, Joe | WR | 1 | 1 (1996) | MTL, SA |
| Kralt, Jason | LB | 67 | 4 (2002–2005) | BC |
| Kramer, Roger | T | 27 | 2 (1963–1964) | CGY, MTL |
| Krausnick-Groh, Alex | C | 18 | 1 (2014) | EDM, SSK |
| Kropke, John | DE, DT | 105 | 7 (1989–1995) | SSK, WPG |
| Kruger, Harry | DB | 11 | 1 (1979) | CGY, WPG |
| Krupey, Steve | G | 5 | 1 (1994) | EDM |
| Kruspe, John | DB | 67 | 5 (1970–1974) | HAM, MTL |
| Kulka, Glenn | DE, DT | 80 | 5 (1990–1994) | MTL, SSK, TOR |
| Kunyk, Gerald | P | 23 | 2 (1977–1978) | CGY, EDM, WPG |
| Kuzyk, Gary | SB | 36 | 3 (1975–1977) | HAM, TOR |
| “K” player count: 55 | ||||